Knucklehead

Printed text

Kayo Specialization

Action - Destroy this: Roll a 6 sided die. Until end of turn, your base is the number rolled.

Temper

Brute Equipment - Head

Legality last confirmed against upstream on 2026-09-30.

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kayo specialization: Specialization is a meta-static ability. Specialization is written as “[HERO] Specialization” which means “You may only have this in your deck if your hero is [HERO],” where HERO is the moniker of the player’s hero card.[2.7.3] cr:8.3.7via the general rule
temper: Temper is a triggered-static ability that means “When the combat chain closes, if this defended, put a -1 counter on it, then destroy it if it has zero .” cr:8.3.10

Printings

Every published printing of Knucklehead
Number	Set	Rarity	Edition	Foiling	Artist	Other face
AKO003	Armory Deck - KayoAKO	Rare	—	Standard	Wisnu Tan	—
HVY009	Heavy HittersHVY	Rare	—	Standard	Wisnu Tan	—
KYO003	Kayo Blitz DeckKYO	Rare	—	Standard	Wisnu Tan	—
LGS231	Local Game Store PromosLGS	Promo	—	Rainbow Foil	Wisnu Tan	—
LGS243	Local Game Store PromosLGS	Promo	—	Cold Foil	Wisnu Tan	—
SKA003	Silver Age Chapter 1 - KayoSKA	Rare	—	Standard	Wisnu Tan	—