A Rival Appears! 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, A Rival Appears! is Unlimited.
YGOPRODeck lists A Rival Appears! for these formats: Duel Links, Common Charity, Edison, TCG, OCG, Master Duel.
A listed print of A Rival Appears! appears in Cybernetic Revolution (CRV-EN054) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for A Rival Appears! is about $0.11 on Cardmarket (prices change frequently).
