TFT Wisps Explained: How Set 18's Shop Mechanic Works at Patch 18.4

TL;DR: Wisps are Set 18’s shop mechanic: one buy per round from the rightmost slot of every other shop, during planning only. They grow stronger and pricier as the game goes on, and after Stage 5 every other Wisp is a Combat Wisp. Patch 18.2 cut nearly every Combat Wisp’s price, 18.3 nerfed a few must-buys, and 18.4 brought back Major Polymorph, limited Polymorph Wisps to the first 2 seconds of planning and added four 0-cost Wisps for low-gold shops. Its B-patch, headed October 7, corrected the prices of Search Party and Three Me.

This guide covers Wisps as they are live at patch 18.4, which went live on October 7, 2026. The rules come from Riot’s Enchanted Wilds Overview (July 27, 2026) and the 18.1, 18.2, 18.3 and 18.4 patch notes. Every value and price on this page comes from those notes. Where a fact comes from somewhere else, the guide says so.

What is a Wisp?

A Wisp is a temporary, single-use purchase that shows up in your shop instead of a champion. Riot’s overview calls Wisps an updated version of the Charms mechanic from Set 12, Magic n’ Mayhem, with quality-of-life changes and a new look. A Wisp can give you power for the next combat, resources such as gold or XP, or a risky deal. Most last just one round.

Wisps scale with the game. Riot’s overview says they tend to get more powerful as the game goes on, and that the more powerful ones cost more.

Where do Wisps appear, and how many can you buy?

These are the rules at patch 18.4:

• Every other shop. Roughly half of your shops contain a Wisp.
• Always the rightmost slot. The Wisp takes the last slot of the shop.
• One per round. You can buy a single Wisp each round, unless Blossom (9) is active.
• Only Wisps you can afford. Riot’s 18.4 notes say the system can only show you Wisps you can afford.
• Planning phase only. When planning ends, the Wisp is whisked away and the champion hiding behind it in that slot is revealed. You still see that unit whether or not you bought the Wisp.
• Combat Wisps late. After Stage 5, every other Wisp is guaranteed to be a Combat Wisp. Riot added this because rolling for a combat Charm late in Set 12 felt too random.
• Polymorph Wisps in the first 2 seconds. At patch 18.4, Polymorph Wisps can only show up in the first 2 seconds of a planning phase. Riot’s September 14 update had limited them to the first Wisp of a planning phase; the 18.4 notes do not say when the 2-second rule replaced it. See Polymorph Wisps below.
• Low-gold Wisps from Stage 4. Since 18.4, four 0-cost Wisps can appear from stage 4-1 to 5-7, and only while you hold under 10 gold.
• Fewer risky Wisps at low health. Since 18.4, once you are below 20 health the game stops offering stat consumables (Knickknacks, Thingamajigs and Doodads), Golden Goose, Major Gambit and Barter.
• Everyone can see what you bought. A purchased Wisp’s category icon appears next to your Tactician’s HP bar, so you can scout other players’ Wisps and they can scout yours.

How are Wisps spent?

You pay the Wisp’s gold price in the planning phase and it takes effect. What happens next depends on the Wisp. Combat Wisps change the coming fight, Economy Wisps pay out gold or XP, Shop Wisps reroll or reshape your shop, and others hand you champions, items or consumables. Because the price is gold you could have spent on XP or rerolls, every Wisp is a spend-or-save decision.

The seven Wisp categories

Riot splits Wisps into seven categories. Each has its own color and icon, which is what you see by an opponent’s HP bar when you scout.

Category	What it covers
Champion	Champions for your board or bench
Combat	An effect for the coming combat, such as a shield, damage or a temporary unit
Gold/XP	Gold or experience (Riot’s 18.2 notes group Cutpurse, Good Loss, Payday and Slow Study as Economy Wisps)
Item	Items and item-related rewards
Misc	Utility effects that fit no other group
Risky	High-variance deals; Riot’s overview calls them risky deals with forest denizens
Shop	Rerolls, or a shop filled with one cost tier

Riot has not published which category every Wisp belongs to. The tables further down use the groups Riot itself used in the 18.2 notes: Combat, Economy, Shop and other.

Blossom: the trait built around Wisps

Blossom is the Set 18 trait that turns Wisps into an engine. Its breakpoints at patch 18.4 are 3, 5, 7, 9 and 11, and its champions are Karma, Yorick, Yunara, Master Yi, Ahri, Sett and Ashe, plus Lux when her Avatar version represents Blossom. Blossom champions gain Attack Damage, Ability Power and max Health, and after combat your Wisps are empowered:

Blossom	Effect on Wisps
(3)	Wisps are upgraded
(5)	Wisps appear in every shop
(7)	You gain gold after buying a Wisp
(9)	You can buy 2 Wisps per round
(11)	Wisps overflow with power

The breakpoints and roster match the game data behind our champions and traits list, where Lux is listed under her Avatar trait, and they are the same in the 18.4 data as in 18.3. Riot’s overview gave the effects without numbers, so this table names the effects only.

Patch 18.4 raised Blossom’s Attack Damage and Ability Power bonus from 12/30/45/50% to 12/30/50/55%. Riot said Blossom works well as a splash for upgraded Wisps, and that the extra stats are meant to show what Blossom (7) and (9) can do.

Two related changes shipped in 18.3. Riot said Blossom (3) gave too much value to a few over-performing Wisps and toned down 13 of them in 15 lines (listed below). The Blossom’s Call augment also changed: per CommunityDragon’s game data (read 2026-09-27), it gives you a Blossom champion based on the cost of each Wisp you buy, and Riot’s 18.3 notes lowered by 1 gold, at some stages, the Wisp price it needs before that champion can be a 4-cost.

Polymorph Wisps

Polymorph Wisps permanently turn one of your champions into a champion that costs one tier more. The game data has three of them, each with a Blossom-upgraded version:

Wisp	What it does	Blossom-upgraded version
Minor Polymorph	A random 1-cost you own becomes a 2-cost	Your highest-star 1-cost becomes a 2-cost
Polymorph	A random 2-cost you own becomes a 3-cost	Your highest-star 2-cost becomes a 3-cost
Major Polymorph	A random 4-cost you own becomes a 5-cost	Your highest-star 4-cost becomes a 5-cost

The names and effects come from Riot’s live game data as published by CommunityDragon (file of October 7, 2026), with no values taken from it. That data has no Polymorph for 3-costs. Riot’s notes also call Major Polymorph “Greater Polymorph”, but no Wisp in the game data has that name; in game it is Major Polymorph. Riot’s notes from 18.2 to 18.4 give no price for any Polymorph Wisp, so check the tooltip.

Riot has changed the Polymorph rules three times:

Date	What changed	Riot’s reason
September 14, 2026 (18.2 mid-patch update)	Polymorph Wisps can only be the first Wisp of a planning phase	A last-second Polymorph left no time to reposition the new unit
September 28, 2026 (18.3 mid-patch update)	Major Polymorph switched off until 18.4	Over a weekend, players used bugs in it to reach two-star 5-costs far earlier than intended
October 7, 2026 (patch 18.4 live; notes published October 6)	Major Polymorph back on after the bug fix. All Polymorph Wisps can only show up in the first 2 seconds of a planning phase. Polymorph no longer runs on ghost armies, and the Blossom versions no longer favor fielded champions over benched ones	Riot says it is noting a fix from a mid-patch update and re-enabling Greater Polymorph after fixing its bug; the ghost-army and bench lines are listed as bug fixes

Riot’s 18.4 notes do not say when the 2-second rule first applied, only that they are noting it. The practical effect at 18.4: if you want a Polymorph, look at your shop as soon as planning starts, because Riot’s rule keeps them out of shops seen later in the phase.

Wisp prices Riot has published (as of 18.4)

Riot does not publish a complete list of Wisps with their prices. Its patch notes do list the old and new price of every Wisp they change, so for the Wisps below the live price at 18.4 is known: the 18.2 price, unless 18.3 or 18.4 changed it. The effect descriptions come from the game data, per CommunityDragon, read on 2026-09-27 (and on 2026-10-07 for Forest Guide and Improved Reach), with the numbers left out because they scale and patches change them.

Riot lists two prices for some Wisps, such as Smurfing at 6g/5g, without saying which case each price applies to.

Combat Wisps

Wisp	Before 18.2	At 18.4	What it does (per CommunityDragon, 2026-09-27)
Backrow Star	3g	1g	A random back-row champion gains Attack Speed for a few seconds
Barrier	4g	3g	Allies gain a Shield that decays over a few seconds
Blaze	5g	3g	Fire spreads across the board, dealing true damage to enemies
Borrowed Gear	not published	not published	At the start of combat, a champion gains a temporary recommended item (Riot’s wording)
Bunch-o-Belts	2g	1g	Your allies gain temporary Giant’s Belts that cannot be removed
Combust	5g	3g	Your champions explode on death, dealing magic damage based on max Health (15% after Riot’s 18.4 B-patch)
Downpour	3g	2g	Your team gains Mana Regen
Fellowship	4g	3g	Champions gain a max-Health Shield and Damage Amp per adjacent ally
Giant’s Aura	5g	3g	Your highest-Health ally deals max-Health damage per second in an area
Hero’s Entrance	4g	2g	After a delay, your leftmost benched champion joins combat with recommended items
Hireling	5g	2g	A temporary champion with recommended items joins your team
Infliction	6g	4g	Slows, Burns, Shreds and Sunders enemies for a few seconds
Iron Core	2g	1g	Your front center champion gains max Health per front-row unit
Ironwood	3g	2g	Enemies attacking your highest-Health champion deal less damage
Killer’s Regret	2g	1g	Your first champions to die stun their killer
Killing Frenzy	3g	2g	Fighters execute low-Health targets and gain Attack Speed on kill
Late Bloomer	6g	4g	A temporary starred-up champion joins your team
Lightning Storm	5g	3g	Deals max-Health true damage to an enemy at intervals
Lightning Strike	2g	1g	Deals max-Health true damage to all enemies
Mana-Rich Soil	3g	2g	Your Casters have reduced max Mana (20/15% after Riot’s 18.4 B-patch)
Petrify Shields	2g	1g	Slows enemies and reduces their shields for a few seconds
Phantom Emblem	3g	2g	Gain a temporary emblem of your most active trait
Potted Lifebloom	2g/1g	1g/0g	Gain a temporary Lifeblossom
Potted Stonebark	2g/1g	1g/0g	Gain a temporary Stonebark Tree
Radiantize	4g	3g	After a delay, a random equipped item temporarily becomes Radiant
Revenge	3g	2g	Whenever an ally dies, your champions gain stacking Damage Amp
Solitude’s Cloak	3g	2g	Champions with no adjacent allies gain max Health and Damage Amp
Stand Alone	3g	2g	Champions alone in their row gain Health and Damage Amp
Supercritical	3g	2g	Allies with Precision gain Critical Strike Damage
Treetop Archers	5g	3g	Archers fire from the trees, dealing physical damage at intervals
Tremors	4g	3g	Stuns enemies at intervals
Yordle Spirit	3g	2g	Allies have a chance to dodge attacks for a few seconds

Riot’s 18.2 lines for Fellowship and Hero’s Entrance say “Gold” rather than “Cost”; neither Wisp pays out gold, so the table reads them as prices.

Economy Wisps

Wisp	Before 18.2	At 18.4	What it does (per CommunityDragon, 2026-09-27)
Cutpurse	3g	2g	Every few seconds, your champions have a chance to drop gold (Riot raised the chance from 15% to 20% in 18.2)
Good Loss	5g	4g	No description in our sources
Payday	4g	3g	Gain gold for each of your champions that survives combat
Slow Study	4g	2g	Gain XP for each of your champions still alive after a set time

Shop Wisps

Wisp	Before 18.2	At 18.4	What it does (per CommunityDragon, 2026-09-27)
All Fives	10g	8g	Rerolls your shop into all 5-cost champions
All Fours	4g	3g	Rerolls your shop into all 4-cost champions
Border Village	6g/4g	3g/2g	Rerolls your shop into all 2-star 2-cost champions
Flash Fire	2g	1g	Rerolls your shop, and Inferno sets shop slots on fire to upgrade them
Middle Path	6g/4g	4g/3g	Rerolls your shop into all 2-star 3-cost champions
Roly-Polys	4g	3g	Gain a reroll for each of your champions still alive after a set time
Search Party	3g/1g	1g/0g (cut in 18.2; Riot’s 18.4 B-patch of October 7 lists the same 3g/1g to 1g/0g change again as a cost correction)	Each of your shops holds a 4-cost this round until you buy one
Starting Town	3g/2g	2g/1g	Rerolls your shop into all 2-star 1-cost champions
Field of Mice	not published	removed in 18.2	No longer in the game

Other Wisps with a published price

Wisp	Before 18.2	At 18.4	What it does (per CommunityDragon, 2026-09-27)
Blood and Iron	3g (before 18.3)	4g (raised in 18.3)	After a number of champion deaths, gain a component anvil
Potioncraft	3g	2g	Gain temporary equippable Potions
Smurfing	7g/6g	6g/5g	Gain a random 5-cost champion
Three Me	9g (before 18.3)	10g (raised in 18.3; Riot’s 18.4 B-patch of October 7 lists the same 9g to 10g change again as a cost correction)	Gain a random 2-star 3-cost champion
Forest Guide	5g (before 18.4)	6g (raised in 18.4); Blossom version 4g to 5g	Gain a random 4-cost champion (read 2026-10-07)
Improved Reach	2g (before 18.4)	1g (cut in 18.4); Blossom version also 2g to 1g	Your Fighters gain range (read 2026-10-07)

Riot’s notes only list prices that changed, so any Wisp missing from these tables has no published base price; check the in-game tooltip for those. Riot’s 18.3 Blossom lines also give Blossom-upgraded prices for Blood Money (2g) and Moonlight Ritual (3g).

What changed for Wisps in patch 18.2

Riot published the 18.2 notes on September 9, 2026, and the patch went live on September 10. Riot’s goal was to make Wisps cheaper so players could keep gold for XP and rolling, alongside cheaper levels.

• Price cuts. Nearly every Combat Wisp got cheaper, plus several Economy, Shop and other Wisps (see the tables above).
• Cutpurse gold drop chance rose from 15% to 20%.
• Combust max-Health damage went from 15% to 12%, on top of its price cut.
• Borrowed Gear now gives its item at the beginning of the combat phase.
• Field of Mice was removed.
• XP costs fell by 4 for each of levels 7 to 8, 8 to 9 and 9 to 10.

The mid-patch update on September 14 reverted part of that. Riot noted that players were saving 5 to 15 gold on cheaper Wisps on top of the cheaper levels, so levels 8 to 9 and 9 to 10 went back to 68 XP each, while 7 to 8 stayed at 56. The same update limited Polymorph Wisps to the first Wisp of each planning phase, because a late Polymorph could turn a unit into a different one with no time to reposition it.

What changed for Wisps in patch 18.3

Riot published the 18.3 notes on September 22, 2026, and the patch went live on September 23. Riot described the Wisp changes as nerfs to the must-buys.

Wisp	Change in 18.3
Stat Boosters	Armor and Magic Resist boost 10 to 8; Attack Speed boost 8% to 6%
Blood and Iron	Price 3g to 4g
Combust	Explosion damage 18% to 15%
Mana-Rich Soil	Mana reduction 18% to 15%
Thingamajig Wisps	Less likely to grant Mana Regen boosters
Three Me	Price 9g to 10g

Riot’s 18.3 line for Combust starts from 18%, while its 18.2 line had set Combust’s max-Health damage to 12%. The two lines do not agree, so trust the in-game tooltip for Combust’s current value.

Riot also listed these changes under the Blossom trait, aimed at the value Blossom (3) added to a few over-performing Wisps:

Wisp (under Blossom)	Change in 18.3
Animate Shop	Duration 26s to 24s
Blaze	Damage 1.5% to 1.25% of max Health
Blood Money	Price 1g to 2g
Combust	Damage 22% to 18%
Curio Cart	Bonus gold 2g to 1g
Heated Rivalry	Takedowns 7 to 5
Heroic Sacrifice	AD/AP 40% to 35%; Armor/MR 40 to 35
Hugify	Health 600 to 500
Mana-Rich Soil	Reduction 25% to 20%
Mercenary Force	Damage Amp 4.5% to 4%
Moonlight Ritual	Price 2g to 3g
Sinister Deal	Gold 3g to 2g; health lost 3 to 2
Stand Alone	Health and Damage Amp 22% to 20%

Riot added that in most games you meet only two to five of these nerfed Wisps. The 18.3 B update on September 24 did not list any Wisp changes. On September 28, an 18.3 mid-patch update switched off Major Polymorph until 18.4 (see Polymorph Wisps).

What changed for Wisps in patch 18.4

Riot published the 18.4 notes on October 6, 2026, and Riot’s TFT patch schedule lists the patch for October 7. Riot gave three aims for Wisps: bring back Major Polymorph after its bug fix, stop offering high-risk, late-scaling Wisps to players at low health so a few last-life rolls do not leave them with no gold and no Combat Wisps, and add 0-cost options, because the shop only shows Wisps you can afford and there were few free ones.

Polymorph. Major Polymorph is back, every Polymorph Wisp is limited to the first 2 seconds of planning, and two Polymorph bugs are fixed. The full history is in Polymorph Wisps.

Four new 0-cost Wisps. All four can appear from stage 4-1 to 5-7, and only while you hold under 10 gold.

Wisp	Effect	Blossom-upgraded version
Drizzle	After 8 seconds of combat, your team gains 10 Mana	15 Mana
Grove Armor	Your highest-Health champion gains 15 Armor and 15 Magic Resist	25 Armor and 25 Magic Resist
Returning Friend	Gain a temporary Training Dummy holding two Giant’s Belts	Three Giant’s Belts
Room for a Shroom	Gain 2 random mushrooms	3 random mushrooms

No longer offered below 20 health. All stat consumables (Knickknacks, Thingamajigs and Doodads), Golden Goose, Major Gambit and Barter.

Value and price changes.

Wisp	Change in 18.4	Blossom-upgraded version
Backrow Star	Attack Speed bonus 85% to 100%	115% to 130%
Forest Guide	Price 5g to 6g	4g to 5g
Giant’s Growth	Health increase 750 to 800	750 to 800
Improved Reach	Price 2g to 1g	2g to 1g
Killing Frenzy	Attack Speed on kill 115% to 130%	140% to 160%
Mana Potion (listed under Wisps)	Mana restored 80 to 70 and starting Mana 20 to 10; the Radiant version 90 to 80 and 20 to 10	Not listed
Stealthy	Duration 6 to 8 seconds	10 to 12 seconds

Bug fixes.

• The Blossom-upgraded Pocket Change gave its extra 1 gold when it appeared in your shop; it now pays when you buy it.
• The unit from Late Bloomer, a Combat Wisp, can no longer combine with other units on your board after combat.
• Polymorph no longer runs on ghost armies.
• Blossom Polymorph Wisps no longer favor fielded champions over benched ones.
• Stealthy’s tooltip now says it affects your 3 strongest Assassins or Fighters.

The Blossom trait itself also gained Attack Damage and Ability Power in 18.4 (see Blossom).

Its 18.4 B-patch (October 7)

Riot later added a mid-patch update headed October 7 to the top of the 18.4 notes. It was not on the page when we read it at about 18:12 UTC on October 7, and it was there when we read it on October 10. Riot says it rolls out on PC first, with mobile to follow, and Riot’s @TFT account posted it live on PC at 03:49 UTC on October 8. It lists eight Wisp lines:

Wisp	Change in the 18.4 B-patch
Abandon Ship	Only appears in the first 2 seconds of a planning phase
Stat Boosters	Armor and Magic Resist boost 10 to 8; Attack Speed boost 8% to 6%
Combust	Explosion damage 12% to 15%
Healing Pool	Only appears when you are missing at least 10 Health
Mana-Rich Soil	Mana reduction 25/18% to 20/15%
Search Party	Price 3g/1g to 1g/0g
Thingamajig Wisps	Less likely to grant Mana Regen boosters
Three Me	Price 9g to 10g

Riot’s summary says the B-patch corrects the cost of 2 Wisps, and Search Party and Three Me are the only price lines. Both prices are the ones Riot’s notes had already given: Search Party’s 1g/0g from 18.2 and Three Me’s 10g from 18.3. Riot does not say how long the live prices had been different. Four more lines repeat changes from the 18.3 notes: the Stat Boosters and Thingamajig lines make the same changes, Mana-Rich Soil’s new 20/15% matches 18.3’s two lines (base 18% to 15%, Blossom 25% to 20%), and Combust ends at 15% as in 18.3, though the B-patch line starts from 12%, the value 18.2 set, where 18.3’s line started from 18%. Riot’s notes do not explain the repeats, and its posts on X say only this much: @TFT tied its Ranked shutdown to critical bugs and rollbacks in patch 18.4, and Riot’s Truexy said the October 8 micropatch would correct some rolled-back balance changes and address Abandon Ship’s optimization, the Wisp whose B-patch line limits it to the first 2 seconds of planning. Neither says which Wisp lines were rollbacks, so trust the in-game tooltip for these values.

The same update temporarily disabled the Heart of Steel augment because of a bug and three arenas for performance. The whole update, with its unit and augment changes, is on the TFT B-patch page.

How to play around Wisps

None of these depend on exact values, which keep moving from patch to patch.

• Count the gold, not just the Wisp. Every Wisp’s price is gold you could spend on XP or rerolls, or keep for interest. A Wisp that drops you below an interest breakpoint costs more than its sticker price. Our economy guide covers the interest math.
• Cheap Wisps often cost no interest at all. Interest is 1 gold per 10 banked, so a 1-gold Wisp bought at 31 gold leaves you at 30 with the same interest, while the same Wisp at 30 gold costs you 1 gold of interest as well. Riot cut prices in 18.2 so that buying a Wisp would not stop you from leveling.
• Buy Combat Wisps for fights that matter. They last only the coming combat, so they are best when a fight decides something: keeping a streak alive, or saving HP before a big roll.
• Survivor Wisps need a strong board. Payday, Slow Study and Roly-Polys pay out per champion still alive, so they return more when your board wins or survives long.
• Shop Wisps suit a roll you were going to make anyway. A shop full of one cost tier is strongest when you are at the level where that tier is what you need.
• Skipping is free. The champion behind the Wisp is revealed when planning ends either way, so passing on a weak Wisp costs you nothing but the Wisp.
• Check the shop early for Polymorph. At 18.4 a Polymorph Wisp can only show up in the first 2 seconds of planning, so a reroll later in the phase will not find one.
• Low gold still gets a Wisp. From stage 4-1 to 5-7, holding under 10 gold opens the four 0-cost Wisps added in 18.4, so a near-empty bank is not always a wasted shop slot.
• Low health narrows the menu. Below 20 health the risky and stat-consumable Wisps listed above stop appearing.
• Plan for the late game. After Stage 5, every other Wisp is a Combat Wisp. Riot notes that late-game econ still matters if you want to be selective about which ones you buy.
• Scout the HP bars. A Wisp icon next to an opponent’s HP bar tells you what category they just bought before you fight them.
• Blossom changes the math. From Blossom (7) you get gold back for each Wisp, and at (9) you can buy two a round, so buying becomes correct far more often.

Related guides

• Set 18 news log: the launch and every Set 18 patch so far.
• TFT B-patch: the whole 18.4 B-patch, with its unit and augment lines.
• Set 18 champions and traits: the roster and every trait, including Blossom.
• TFT economy guide: why a Wisp competes with your bank.

Sources

• Riot Games, Enchanted Wilds Overview, published 2026-07-27.
• Riot Games, Teamfight Tactics patch 18.1, published 2026-08-25.
• Riot Games, Teamfight Tactics patch 18.2, published 2026-09-09, with the mid-patch update of 2026-09-14.
• Riot Games, Teamfight Tactics patch 18.3, published 2026-09-22, with the 18.3 B update of 2026-09-24 and the mid-patch update of 2026-09-28.
• Riot Games, Teamfight Tactics patch 18.4, published 2026-10-06, with the B-patch headed 2026-10-07 (not on the page at about 2026-10-07 18:12 UTC; read 2026-10-10 11:07 UTC).
• Riot Games (@TFT) on X, Ranked queues disabled (2026-10-07, 21:13 UTC) and 18.4B live on PC (2026-10-08, 03:49 UTC), and Riot Truexy on X, post of 2026-10-08, 03:56 UTC, read 2026-10-11.
• Riot Games, TFT patch schedule, as read on 2026-10-07 and 2026-10-10, for the 18.4 live date. Riot says dates can change.
• CommunityDragon, TFT game data (en_us.json), read 2026-09-27 and 2026-10-07 (file of 2026-10-07), for Wisp names and effect descriptions and the Blossom breakpoints only, never for values.

Update log

• 2026-10-11: Paraphrased Riot’s September 14 line on Wisp savings, corrected our note that two B-patch lines repeat 18.3 word for word (they make the same changes), replaced a general tip with the interest arithmetic, and removed a product mention. Added Riot’s own context for the 18.4 B-patch Wisp lines that end at 18.3 values (@TFT on rollbacks, Riot’s Truexy on the micropatch and Abandon Ship) and @TFT’s PC live time, 03:49 UTC on October 8. Riot has not said which Wisp lines were rollbacks.
• 2026-10-10: Added Riot’s 18.4 B-patch (headed October 7, first seen on the notes page on October 10): the eight Wisp lines, the Search Party and Three Me price corrections in the price tables, Combust’s and Mana-Rich Soil’s new values, and the note that four lines repeat 18.3 values. Removed our October 7 line saying there was no 18.4 mid-patch update.
• 2026-10-07: Updated for live patch 18.4. Replaced the September 14 Polymorph rule with the 2-second rule, added the Polymorph Wisps section (the three Polymorph Wisps, Major Polymorph’s other name in Riot’s notes, and the dated rule changes, including the September 28 disable), and added the 18.4 section: the four 0-cost Wisps, the below-20-health exclusions, the value and price changes, the Wisp bug fixes and Blossom’s new Attack Damage and Ability Power. Forest Guide and Improved Reach joined the price tables, and the tables now read “At 18.4”.
• 2026-09-27: Rewritten for live patch 18.3. Removed the pre-launch status note and the pre-launch dates (the first version said live August 12; the set went live on August 26 with patch 18.1, after a PBE that opened on July 28). Replaced the reveal-era Wisp examples and prices with the prices in Riot’s 18.2 and 18.3 notes; for example, the first version listed Smurfing at 8 gold, while Riot’s notes show 7g/6g at launch and 6g/5g since 18.2. Dropped Field of Mice, which 18.2 removed, and the reveal-era examples whose prices Riot has not published. Added the Blossom trait table, the 18.2 and 18.3 changes, and a sources list.
• 2026-07-14: First version, written from the Set 18 reveal.

Champion, trait, and cosmetic art (c) Riot Games.