Lone Wolf is a Continuous 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, Lone Wolf is Unlimited.
YGOPRODeck lists Lone Wolf for these formats: GOAT, OCG GOAT, Common Charity, Edison, TCG, OCG, Master Duel.
A listed print of Lone Wolf appears in Dark Revelation Volume 3 (DR3-EN240) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Lone Wolf is about $0.11 on Cardmarket (prices change frequently).
