TFT Set 18 Wisps: every Wisp, its cost and when to buy it
Set 18 adds a purchase decision to the shop itself. Wisps are small, single-use and easy to autopilot past — which is exactly why they are worth reading properly.
Everything else in this guide holds across sets. This is the set mechanic for Set 18, Enchanted Wilds, and it will be replaced. It's here because ignoring the set mechanic is a reliable way to lose games you otherwise understand.
Looking up one Wisp? Jump to the full list of all 200, searchable by name, effect or condition.
How Wisps work
A Wisp is a single-use effect you buy from the shop. It occupies the rightmost shop slot, appears on every other shop, and you can buy at most one per round. There are 200 of them in the set, priced from 0 to 45 gold.
Three structural details that matter more than any individual Wisp:
- They scale with the game. Wisps get stronger and more expensive as stages pass. A 3-gold Wisp in stage 2 and a 20-gold Wisp in stage 5 are doing comparable jobs relative to your income.
- A refresh rerolls the Wisp too. The fifth slot is part of the shop. If you refresh, you're gambling on the Wisp as well as the units — occasionally that's the reason to refresh.
- They occupy a shop slot. On a Wisp round you're rolling four champion slots, not five. That's a 20% reduction in your odds of hitting a unit, quietly, on half your rounds — worth knowing during a rolldown.
That last point is the one almost nobody accounts for. If you are doing the arithmetic from the rolling chapter, every other refresh is 20% worse than the table says. It doesn't change what you should do, but it does mean a rolldown in Set 18 needs slightly more gold than the raw odds suggest.
The seven categories
Wisps are colour-coded into seven groups. The distribution is lopsided and that itself is informative — nearly half of them are combat buffs, so most of the Wisps you see will be the least interesting kind.
Give you units, duplicate units, or star them up. The most direct conversion of gold into board strength in the game.
Temporary buffs for the coming fight or few fights. By far the largest group, and the easiest to overpay for.
Change what the shop shows you — extra slots, forced costs, free refreshes. Multiplies a rolldown rather than replacing it.
Economy. Straight conversions of one resource into another, best taken early when there are rounds left to compound.
Components, full items and item manipulation. Rare, and usually undervalued relative to a combat buff of the same price.
A cost or a condition attached to a bigger payoff. Read these twice — the downside is real and is the whole reason the price is low.
Everything that doesn't fit the other six, from level manipulation to board effects.
Every Set 18 Wisp, with its cost and condition
All 200 Wisps, grouped by family and cheapest first. Search by name, by what it does (reroll, emblem, XP) or by condition. 56 of them are conditional: they are only offered when your board already does what the condition says.
| Wisp | Family | Cost | Condition |
|---|---|---|---|
| Mitosis Gain a Tiny Duplicator. | Champion | 1g | Always offered |
| Propagate Gain a copy of the first allied champion to die. | Champion | 1g | Always offered |
| Apprentice Gain a random 2-star 1-cost champion. | Champion | 3g | Always offered |
| Heated Rivalry Gain a Rengar or a Kha'Zix. They gain 3 takedowns. | Champion | 3g | Always offered |
| Lost Travelers Gain 3 gold worth of random champions. | Champion | 3g | Always offered |
| Forest Twins Gain 2 copies of a 2-cost champion you don't have. | Champion | 4g | Always offered |
| Field of Mice Gain a Tiny Duplicator for each unique 1-cost champion you field. | Champion | 5g | 2 or more 1-costs on board last combat |
| Forest Guide Gain a random 4-cost champion. | Champion | 5g | Always offered |
| Solar Gift Gain a Leona, Sejuani, and Kayle. | Champion | 5g | Solar trait active |
| Journeyman Gain a random 2-star 2-cost champion. | Champion | 6g | Always offered |
| Big Guns Gain 2 random 1-star 4-cost champions. | Champion | 8g | Always offered |
| Smurfing Gain a random 5-cost champion. | Champion | 8g | Always offered |
| Three Me Gain a random 2-star 3-cost champion. | Champion | 9g | Always offered |
| Grandmaster Gain a random 2-star 5-cost champion. | Champion | 18g | Always offered |
| Hero of Prophecy Permanently gain a copy of the same random 5-cost every round. | Champion | 35g | level 10 and have 0 copies of at least 1 5-cost |
| Circle of Elders Gain one of each 5-cost champion. | Champion | 45g | Always offered |
| Prolific Power Your champions gain 8% Attack Damage and Ability Power. | Combat | 0g | Always offered |
| Ultra Ascension After 25 seconds, allies gain 300% [DA]. | Combat | 0g | Always offered |
| Verdant Vitality Your champions gain 125 Health. | Combat | 0g | Always offered |
| Bark Armor Your champions gain 150 shield for 10 seconds. | Combat | 1g | Always offered |
| Better Bestie The BFF rider gains 15% Attack Speed and 150 Health. | Combat | 1g | sprykin trait active |
| Borrowed Gear A champion gains a temporary recommended item. | Combat | 1g | Always offered |
| Breeze Your team gains 12% Attack Speed. | Combat | 1g | Always offered |
| Crystal Ball Reveal your next opponent. Your team gains 12% Attack Speed. | Combat | 1g | 4 or more players left |
| Found Friend Gain a Training Dummy with a Giant's Belt. | Combat | 1g | Always offered |
| Hugify Your highest Health unit bulks up, gaining 350 [HP]. | Combat | 1g | Always offered |
| Hummingbird Your highest [AS] unit shrinks, gaining 20% [AS]. | Combat | 1g | Always offered |
| Rain Your team gains 1 mana regen. | Combat | 1g | Always offered |
| Stealthy Your 2 strongest Fighters or Assassins are untargetable for 6 seconds. | Combat | 1g | Always offered |
| Aftershock After 10 seconds, stun all enemies for 1.5 seconds. | Combat | 2g | Always offered |
| Barrier Allies gain 1000 Shield, decaying over 5 seconds. | Combat | 2g | Always offered |
| Big Boom The first ally to die explodes, dealing 20% Max Health magic damage. | Combat | 2g | Always offered |
| Blood Hunt Rivals dash on takedown and deal 150 physical damage to their target. | Combat | 2g | Rival trait active and at least 1 item on a Rival unit |
| Bunch O' Belts Your champions gain 7 temporary, non-removable Giant's Belts. | Combat | 2g | Always offered |
| Diversified Your team gains 30 Health for each active trait. | Combat | 2g | at least 4 non-unique traits active |
| Downpour Your team gains 2 mana regen. | Combat | 2g | Always offered |
| Flow Your champions are Unstoppable and gain 15% Attack Speed for 10 seconds. | Combat | 2g | Always offered |
| Friendly Flora All allies gain the Flora Fatalis bonus at 50% effectiveness. | Combat | 2g | Flora Fatalis trait active |
| Iron Core Your front center champion gains 4% Max Health per front-row unit. | Combat | 2g | Always offered |
| Lightning Strike Deal 10% max [HP] true damage to enemies. | Combat | 2g | Always offered |
| Living Soil Every 4 seconds, roots stun an enemy for 1 second. | Combat | 2g | Always offered |
| Marksmen's Gale Your Marksmen's attacks grant 3% stacking AS. | Combat | 2g | 2 or more marksmen on board |
| Moonlight Ritual Your lowest star-level 1 or 2-cost champion stars up in combat. | Combat | 2g | at least 1 2* 1 or 2-cost |
| Moonrise After 10 seconds, increase Lunar's effects by 100%. | Combat | 2g | Lunar trait active |
| Nature's Ally Every 3 ally deaths, summon a random Riftbeast. | Combat | 2g | Always offered |
| Petrified Dummy Your first champion to die turns into a 1000 Health target dummy with their defenses. | Combat | 2g | Always offered |
| Petrify Shields 10% Slow enemies and reduce their shields by 20% for 10 seconds. | Combat | 2g | Always offered |
| Phantom Armor Gain 1 temporary Warmog's Armor. | Combat | 2g | Always offered |
| Phantom Vest Gain 1 temporary Bramble Vest. | Combat | 2g | Always offered |
| Plated Shields Shields are 15% stronger. Allies gain 150 shield for 10 seconds. | Combat | 2g | Always offered |
| Potted Stonebark Gain a temporary Stonebark Tree. | Combat | 2g | elderwood trait active |
| Preppers Your stacking items will start off partially stacked. | Combat | 2g | at least 2 stacking items |
| Quicken On cast, your champions gain 25% Attack Speed for 3 seconds. | Combat | 2g | Always offered |
| Resistant Tanks reduce each instance of incoming damage by 15. | Combat | 2g | Always offered |
| Sunfire Sorcery Burn and Wound enemies for 10 seconds. | Combat | 2g | Always offered |
| Tattered Armor 30% Shred and Sunder enemies for 10 seconds. | Combat | 2g | Always offered |
| Wrapped in Thorns Your tanks reflect 12% of damage taken to adjacent enemies every 4 seconds. | Combat | 2g | only if you have 2 or more tanks on your team |
| Bulwark Your tanks gain a 20% Max Health shield upon falling below 50% Health. | Combat | 3g | 2 or more tanks on board |
| Counterspell Increase all enemies' Max Mana by 15 until their next cast. | Combat | 3g | Always offered |
| Escalation After 15 seconds of combat, your team gains 30% Damage Amp. | Combat | 3g | Always offered |
| Heroic Sacrifice Champions with 3 items gain HEROIC POWER, but other allies are sacrificed. | Combat | 3g | Always offered |
| Homing Fireflies Casters spawn a firefly per 20 mana spent. Each deals 150 magic damage. | Combat | 3g | 2 or more casters on board |
| Horse's Visit Gain the Horse Primal buff for this combat. | Combat | 3g | primal trait active, horse not chosen |
| Improved Reach Fighters gain 1 range. | Combat | 3g | 2 or more fighters on board |
| Ironwood Enemies attacking your highest health champion deal 10% less damage. | Combat | 3g | Always offered |
| Killing Frenzy Fighters execute targets under 10% Health. They gain 15% Attack Speed on kill. | Combat | 3g | 2 or more fighters on board |
| Mana-Rich Soil Your casters have 15% less max mana. | Combat | 3g | 2 or more casters on board |
| Marksmen's Marks Your marksmen have a 25% chance to double attack. | Combat | 3g | 2 or more marksmen on board |
| Memorial Dummy Your first itemized tank spawns a Dummy with their items on death. | Combat | 3g | 1 or more itemized tank on board |
| Mercenary Force Gain 3% damage amp for every 10 gold you have. | Combat | 3g | more than 30 gold. |
| Phantom Gloves Gain a temporary Thief's Gloves. | Combat | 3g | Always offered |
| Potted Lifebloom Gain a temporary Lifeblossom. | Combat | 3g | elderwood trait active |
| Regeneration Your team heals 1% Max Health per second. | Combat | 3g | Always offered |
| Revenge Whenever an ally dies, your champions gain 4% stacking Damage Amp. | Combat | 3g | Always offered |
| Scrappy 2 champions without items gain a temporary recommended item. | Combat | 3g | Always offered |
| Solitude's Cloak Champions with no adjacent allies gain 10% Max HP and Damage Amp. | Combat | 3g | can't appear if sunbeam or moonbeam is active |
| Stand Alone Champions alone in their row gain 15% Health and 15% Damage Amp. | Combat | 3g | elderwood trait not active |
| Star Power Your team gains 10% AD and AP, your 3-star units gain 25% AD and AP. | Combat | 3g | at least 1 3* non-tank fielded |
| Supercritical Your units with Precision gain 25% Critical Strike Damage. | Combat | 3g | at least 1 unit in army has precision |
| Tiger's Visit Gain the Tiger Primal buff for this combat. | Combat | 3g | primal trait active, tiger not chosen |
| Training Yard Gain 2 Training Dummies each with a random tank item. | Combat | 3g | Always offered |
| Turtle's Visit Gain the Turtle Primal buff for this combat. | Combat | 3g | primal trait active, turtle not chosen |
| Yordle Spirit Allies have a 99% chance to dodge attacks for 4 seconds. | Combat | 3g | Always offered |
| Backrow Star A random back row champion gains 75% AS for 7 seconds. | Combat | 4g | Always offered |
| Booster Shot Up to 2 1-star champions temporarily star up during combat. | Combat | 4g | 1 or more 1* 3-5 cost champion on board |
| Fae Federation ALL your units gain 2 Fae pixies this round. | Combat | 4g | fae trait active |
| Fellowship Champions gain 4% Max Health Shield and 4% Damage Amp per adjacent ally. | Combat | 4g | Always offered |
| Giant Growth Your highest health champion gains 600 health and grows in size. | Combat | 4g | Always offered |
| Giant's Aura Your highest Health ally deals 2% max Health damage per second in an area. | Combat | 4g | Always offered |
| Hero's Entrance After 8 seconds, the leftmost benched champion joins combat with 2 items. | Combat | 4g | Always offered |
| Melting Resists Burning enemies lose 3 Armor and Magic Resist per second. | Combat | 4g | inferno trait active |
| Minion Horde Spawn 4 minions. | Combat | 4g | Always offered |
| Phantom Splash At combat start up to 2 inactive traits activate at the lowest level. | Combat | 4g | Always offered |
| Snacktime! The BFF eats enemies he damages under 10% Max Health. | Combat | 4g | sprykin trait active |
| Blaze Fire spreads across the board, dealing ramping true damage to enemies. | Combat | 5g | Always offered |
| Clone Companion Clone your highest damage champion. The clone deals 20% damage. | Combat | 5g | Always offered |
| Combust Your champions explode on death, dealing 20% max health magic damage. | Combat | 5g | Always offered |
| Killer's Regret Your first 3 champions to die stun their killer for 1 second. | Combat | 5g | Always offered |
| Late Bloomer A temporary 3 star 1-cost with 1 recommended item joins your team. | Combat | 5g | Always offered |
| Lightning Storm Every 1 second deal 7% max health true damage to an enemy. | Combat | 5g | Always offered |
| Treetop Archers Archers fire from the trees, dealing 500 physical damage every 3 seconds. | Combat | 5g | Always offered |
| Guild of Thieves Gain 2 temporary Thief's Gloves. | Combat | 6g | Always offered |
| Hireling A temporary 1-star 5-cost with 1 recommended item joins your team. | Combat | 6g | Always offered |
| Infliction Slow, Burn, Shred, and Sunder enemies for 8 seconds. | Combat | 6g | Always offered |
| Phantom Emblem Gain a temporary emblem of your most active trait. | Combat | 6g | Always offered |
| Radiantize After 12 seconds, 1 random equipped item temporarily becomes Radiant. | Combat | 6g | Always offered |
| Tremors Every 8 seconds, stun enemies for 1 second. | Combat | 6g | Always offered |
| Hand of Baron Your team gains Baron Buff, increasing their stats. | Combat | 10g | riftbeast trait active |
| Tornado Summon a tornado that deals 5% Max Health magic damage to enemies. | Combat | 10g | Always offered |
| Nature's Wrath Kill EVERYONE without items after 10 seconds. | Combat | 15g | at least 3 itemized units on team |
| All Ones Reroll your shop with all 1-cost units. | Shop | 0g | Always offered |
| All Twos Reroll your shop with all 2-cost champions. | Shop | 1g | Always offered |
| Starfall When you reroll the shop, the lowest cost champion becomes 2-star. | Shop | 1g | Always offered |
| All Threes Reroll your shop with all 3-cost champions. | Shop | 2g | Always offered |
| Freeroller Gain 2 rerolls. | Shop | 2g | Always offered |
| Flash Fire Reroll your shop. Inferno lights 2 shop slots on fire, upgrading them. | Shop | 3g | Inferno trait active |
| Ride the Wave The next 2 rerolls this round will have 2+ champions fielded last combat. | Shop | 3g | Always offered |
| Rolling Bones You have a 60% chance to get a free reroll with each kill. | Shop | 3g | Always offered |
| Roly-Polys For each ally champion alive at 18 seconds, gain a reroll. | Shop | 3g | Always offered |
| Search Party Each of your shops has a 4-cost in it this round until you buy one. | Shop | 3g | Always offered |
| All Fours Reroll your shop with all 4-cost champions. | Shop | 4g | Always offered |
| Jungling Overrun the shop with Riftbeasts. | Shop | 4g | riftbeast trait active |
| Starting Town Reroll your shop with all 2-star 1-cost champions. | Shop | 4g | Always offered |
| Border Village Reroll your shop with all 2-star 2-cost champions. | Shop | 6g | Always offered |
| Refreshing Light Gain a free reroll per star level of each unique Sunbeam champion. | Shop | 6g | Solar trait active |
| Lucky 7 Gain 7 shop rerolls. | Shop | 7g | Always offered |
| Middle Path Reroll your shop with all 2-star 3-cost champions. | Shop | 7g | Always offered |
| Animate Shop For 20 seconds, your shop refreshes for free every 2 seconds. | Shop | 8g | Always offered |
| All Fives Reroll your shop with all 5-cost champions. | Shop | 10g | Always offered |
| Coin Flip Flip a coin, gain 1 gold if it's heads. | Gold/XP | 0g | Always offered |
| Golden Altar Gain gold based on the Eldritch sacrifice's cost and star level. | Gold/XP | 0g | eldritch trait active |
| Life Debt Gain 1 gold for every 10 missing Player Health. | Gold/XP | 0g | missing at least 70 player health |
| Truce Gain 1 gold. Your opponent gains 1 gold. | Gold/XP | 0g | Always offered |
| Barter The next champion sold sells for 200% gold. | Gold/XP | 1g | Always offered |
| Blood Money Gain 1 gold for every champion you kill. | Gold/XP | 1g | Always offered |
| Experienced Gain 2 XP. | Gold/XP | 1g | Always offered |
| Pocket Change Your 1-star champions drop 1 gold on death. | Gold/XP | 1g | Always offered |
| Die Roll Roll a six-sided die. Gain gold equal to the result. | Gold/XP | 2g | Always offered |
| Golden Goose Gain 1 gold for every 1000 damage your highest damage champion deals. | Gold/XP | 2g | Always offered |
| Bronze Spoon Gain 6 XP. | Gold/XP | 3g | Always offered |
| Slow Study For each ally champion alive at 15 seconds, gain 2 XP. | Gold/XP | 3g | Always offered |
| Grow Up Gain 16 XP. | Gold/XP | 10g | Always offered |
| The Chariot Rerolls and XP are half price. | Gold/XP | 10g | have at least 30 gold |
| Artifactinate Lose 3 components, including ones built into items. Gain an artifact anvil. | Item | 0g | have at least 3 components |
| Brutal Bargain Lose 8 player health and gain a component anvil. | Item | 0g | Always offered |
| Premium Swap Meet Sell a 3 star champion to get 3 rerolls and a Lucky Item Chest. | Item | 0g | have a 3* champion |
| Blood and Iron After 20 champion deaths, gain a component anvil. | Item | 3g | Always offered |
| Idle Craftsman A component on your bench turns into a completed item it builds. | Item | 4g | have at least 1 component |
| Peddler Open a store where you can buy an item. They cost 0 to 10 gold. | Item | 6g | Always offered |
| Abandon Ship Sell your board and bench, gain 10 gold, 10 XP, and 5 rerolls. | Risky | 0g | Always offered |
| Drought Add 2 to your loss streak. | Risky | 1g | only if you're on no streak or a loss streak |
| Essence Theft Gain 50% bonus Coven Essence this combat. | Risky | 1g | coven trait active |
| Fertilize Gain 1 XP for each enemy that dies. | Risky | 1g | Always offered |
| Flip Frenzy Flip a coin, gain 1 gold if it's heads. Continue until you flip tails. | Risky | 1g | Always offered |
| Flood Add 2 to your win streak. | Risky | 1g | only if you're on no streak or a win streak |
| Major Polymorph A 4-cost you have permanently transforms into a 5-cost. | Risky | 1g | Always offered |
| Minor Gambit If you win the next player combat, gain 2 gold. | Risky | 1g | Always offered |
| Minor Polymorph A 1-cost you have permanently transforms into a 2-cost. | Risky | 1g | Always offered |
| Polymorph A 2-cost you have permanently transforms into a 3-cost. | Risky | 1g | Always offered |
| Take One With Ya If you lose and kill at least 1 unit, gain 4 XP. | Risky | 1g | Always offered |
| Comfort Food Gain 2 HP. If you lose the next player combat, gain 4 more. | Risky | 2g | Always offered |
| Major Gambit If you win the next player combat, get 10 gold. | Risky | 2g | Always offered |
| Trophy Hunter Gain 100% more takedowns on Rivals. | Risky | 2g | Rival trait active and at least 1 item on a Rival unit |
| Cutpurse Every 5 seconds, your champions have a 20% chance to drop 1 gold. | Risky | 3g | Always offered |
| Golden Road After 3 Player Combats, gain 3 gold per fight won. | Risky | 3g | Always offered |
| Payday For each ally champion that survives combat, gain 2 gold. | Risky | 3g | Always offered |
| Ritual Complete If you win combat, complete the current Coven ritual. | Risky | 3g | coven trait active |
| Component Bounty If you win the next player combat, gain a component anvil. | Risky | 4g | Always offered |
| All In If you win your next 3 combats, level up. | Risky | 5g | Always offered |
| Good Loss For the next 3 player combats, gain 6 XP if you lose. | Risky | 5g | Always offered |
| Doodad Jar Gain 1 random consumable that gives Armor, Magic Resist, or Health. | Misc | 0g | Always offered |
| Early Fix Gain 1 reforger. | Misc | 0g | Always offered |
| Forest Mage Fill your shop with 5 Wisps. You can cast 1 of them. | Misc | 0g | Always offered |
| Knick-Knack Jar Gain 1 random consumable that give Attack Damage or Attack Speed. | Misc | 0g | Always offered |
| Salvager Any units you bench have items removed and broken apart. | Misc | 0g | Always offered |
| Sinister Deal Lose 3 player health. Gain 2 gold. | Misc | 0g | Always offered |
| Thingamjig Jar Gain 1 random consumable that gives AP or Mana Regen. | Misc | 0g | Always offered |
| Touch Grass Gain 5 Gold and disable all actions. After 15 seconds, gain 2 instead. | Misc | 0g | is start of round reroll or first 2 seconds of planning |
| Blast Potion Gain an equippable one-time use Blast Potion. | Misc | 1g | Always offered |
| Consumable Open a store where you can spend gold to buy a consumable. | Misc | 1g | Always offered |
| Faerie Flight Attract 100% more Fae pixies this combat. | Misc | 1g | fae trait active |
| Health Potion Gain an equippable one-time use Health Potion. | Misc | 1g | Always offered |
| Knick-Knack Bag Gain 2 random consumables that give Attack Damage or Attack Speed. | Misc | 1g | Always offered |
| Lesser Chaos Cast a random Wisp. | Misc | 1g | Always offered |
| Mana Potion Gain an equippable one-time use Mana Potion. | Misc | 1g | Always offered |
| Protective Ritual Reduce any player damage taken by 3 this round. | Misc | 1g | coven trait active |
| Double Up The next Wisp bought activates twice and costs double. | Misc | 2g | Always offered |
| Greater Chaos Cast 2 random Wisps. | Misc | 2g | Always offered |
| Healing Pool Gain 5 Player Health. | Misc | 2g | missing at least 10 player health |
| Terraforming Gain 5 Greenfather seeds at the start of combat. | Misc | 2g | greenfather trait active |
| Doodad Bag Gain 3 random consumables that give Armor, Magic Resist, or Health. | Misc | 3g | Always offered |
| New and Improved Gain a pocket recombobulator. | Misc | 3g | Always offered |
| Potioncraft Gain three equippable one-time use Potions. | Misc | 3g | Always offered |
| Thingamjig Bag Gain 3 random consumable that gives AP or Mana Regen. | Misc | 3g | Always offered |
| Minor Blood Ritual Lose 3 Player Health. Gain a lesser champion duplicator. | Misc | 4g | Always offered |
| Blood Ritual Lose 9 Player Health. Gain a champion duplicator. | Misc | 5g | Always offered |
| Doodad Sack Gain 5 random consumables that give Armor, Magic Resist, or Health. | Misc | 5g | Always offered |
| Knick-Knack Sack Gain 4 random consumables that give Attack Damage or Attack Speed. | Misc | 5g | Always offered |
| Thingamjig Sack Gain 5 random consumable that gives AP or Mana Regen. | Misc | 5g | Always offered |
| Fake Level You are temporarily level 10. | Misc | 10g | not level 10 |
Nothing matches that.
Checking a Wisp here means alt-tabbing out of the round. NoxuTFT shows this list inside the game, next to the pool counts and the augment grades for the comp you're playing, so the shop decision is made with the timer still running.
What a Wisp actually costs you
The price on the Wisp is not its cost. Its cost is what that gold would otherwise have bought, and in TFT gold has a very well-defined alternative use: two gold is one refresh, four gold is a level's worth of XP.
So the honest test for any Wisp is a single question:
Is this better than {price ÷ 2} refreshes at my current level? A 6-gold Wisp is three refreshes. At level 8 that's fifteen champion slots and roughly a third of a copy of your 4-cost carry. Quite a lot of combat buffs are not worth a third of your carry.
That framing kills most mid-priced combat Wisps immediately and rescues most cheap economy ones. A 1-gold Wisp that gives XP or gold is half a refresh and almost always correct. A 12-gold buff that lasts one fight has to actually win you that fight to break even — which in stage 5, against the player who would otherwise knock you out, it genuinely might.
The conditional ones
56 of the 200 Wisps carry a condition — something your board must already be doing for them to be offered or to pay out. These are usually the best value in the set when the condition is incidentally true, and a trap when you'd have to bend your board to satisfy it. Never reshape a board to unlock a Wisp; it's a one-off effect and your board is the whole game.
The expensive ones
The top end goes up to 45 gold — more than a level. Those are meant to be game-deciding and mostly are, but the price means they compete with your entire rolldown rather than with a couple of refreshes.
| Wisp | Cost | Effect |
|---|---|---|
| Circle of Elders | 45g | Gain one of each 5-cost champion. |
| Hero of Prophecy | 35g | Permanently gain a copy of the same random 5-cost every round. |
| Grandmaster | 18g | Gain a random 2-star 5-cost champion. |
| Nature's Wrath | 15g | Kill EVERYONE without items after 10 seconds. |
When to buy one
A short decision procedure that works without knowing all 200:
Is it cheap economy? Buy it.
Gold, XP and champion Wisps in the 1–5 gold range are almost always better than the refresh they replace, particularly in stage 2 and 3 where the compounding is real.
Am I about to lose a round that matters? Consider the combat buff.
A one-fight buff is worth its price exactly when the fight is worth its price. At 80 health in stage 3, rarely. At 15 health in stage 5, frequently.
Does it ask me to change my board? Skip it.
A conditional Wisp you already satisfy is a gift. One you'd have to contort for is a trade of permanent board quality for a temporary effect.
Am I mid-rolldown? Skip it.
During a committed rolldown, every gold has a named target. The Wisp is not one of them, and this is the moment the fifth-slot tax is already working against you.
The general shape: Wisps are strongest at the edges of a game — cheap and compounding early, expensive and decisive late — and weakest in the middle, where your gold has the clearest alternative use.
The same list is in the NoxuTFT app under Statistics → Wisps, searchable in game without alt-tabbing — next to the pool counts and augment grades that make the rest of the shop decision. See what the in-game TFT helper does. The mechanic replaces Set 12's Charms and behaves similarly, so anyone who played that set will find the pricing instincts transfer.
Last chapter, and the one that actually decides your rank: consistency, review and tilt.