Purge Ray 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, Purge Ray is Unlimited.
YGOPRODeck lists Purge Ray for these formats: Duel Links, Common Charity, TCG, OCG, Master Duel.
A listed print of Purge Ray appears in Legacy of the Valiant (LVAL-EN072) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Purge Ray is about $0.01 on TCGPlayer (prices change frequently).
