Damage Translation 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, Damage Translation is Unlimited.
YGOPRODeck lists Damage Translation for these formats: Duel Links, Common Charity, Edison, TCG, OCG, Master Duel.
A listed print of Damage Translation appears in Ancient Prophecy (ANPR-EN071) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Damage Translation is about $0.08 on Cardmarket (prices change frequently).
