Spell Purification 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, Spell Purification is Unlimited.
YGOPRODeck lists Spell Purification for these formats: GOAT, OCG GOAT, Duel Links, Speed Duel, Common Charity, Edison, TCG, OCG, Master Duel.
A listed print of Spell Purification appears in Dark Revelation Volume 3 (DR3-EN118) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Spell Purification is about $0.04 on TCGPlayer (prices change frequently).
