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Major Polymorph TFT Set 18 Wisp Effect and Stages (Updated September 2026)
Major Polymorph wisp for Teamfight Tactics Set 18. Full effect, rarity, the stages where it is offered, similar wisps and the strongest comps of the set.
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Major Polymorph
Major Polymorph
Patch 18.2 · Set 18 · Teamfight Tactics
A random 4-cost you own permanently transforms into a 5-cost.
RarityGoldTypeWispCategoryRiskyCost0 goldOffered at stages4-2, 5-1
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Part of TFT Set 18
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Frequently asked questions
- What does Major Polymorph do?
- A random 4-cost you own permanently transforms into a 5-cost.
How the Major Polymorph page is built
Where the data comes from
The Major Polymorph page is built from game data for the current Teamfight Tactics set. Wisps are the Set 18 mechanic, so the effect text, rarity and the stages where Major Polymorph is offered are refreshed with every patch.
What this page shows
The card at the top shows the full effect of Major Polymorph, its rarity, category and the stages where you can pick it. Right below are similar wisps of the same category. Further down are the strongest comps, items and traits of the set.
Wisps are not ranked by tier, their strength depends on your board, stage and economy. Check the effect against the comp you are playing.