Kozaky's Self-Destruct Button is a Normal Trap Card.
Trap Cards are normally Set first and can be activated on a later turn, often in response to an action.
On the current TCG and OCG Forbidden & Limited lists tracked here, Kozaky's Self-Destruct Button is Unlimited.
YGOPRODeck lists Kozaky's Self-Destruct Button for these formats: GOAT, OCG GOAT, Duel Links, Edison, TCG, OCG, Master Duel.
A listed print of Kozaky's Self-Destruct Button appears in Dark Revelation Volume 3 (DR3-EN232) at Rare rarity.
Among markets shown on this page, the lowest listed snapshot for Kozaky's Self-Destruct Button is about $0.29 on TCGPlayer (prices change frequently).
