Rare Metalmorph is a Continuous 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, Rare Metalmorph is Unlimited.
YGOPRODeck lists Rare Metalmorph for these formats: GOAT, OCG GOAT, Duel Links, Speed Duel, Common Charity, Edison, TCG, OCG, Master Duel.
A listed print of Rare Metalmorph appears in Battle Pack 3: Monster League (BP03-EN200) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Rare Metalmorph is about $0.03 on Cardmarket (prices change frequently).
