Drastic Drop Off is a Counter 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, Drastic Drop Off is Unlimited.
YGOPRODeck lists Drastic Drop Off for these formats: Common Charity, Edison, TCG, OCG, Master Duel.
A listed print of Drastic Drop Off appears in Duel Terminal 6a (DT06-EN047) at Duel Terminal Normal Parallel Rare rarity.
Among markets shown on this page, the lowest listed snapshot for Drastic Drop Off is about $0.19 on Cardmarket (prices change frequently).
