Overwind 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, Overwind is Unlimited.
YGOPRODeck lists Overwind for these formats: Duel Links, Common Charity, TCG, OCG, Master Duel.
Overwind belongs to the Wind-Up archetype—use that tag when searching for engine pieces and tech options.
A listed print of Overwind appears in Generation Force (GENF-EN067) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Overwind is about $0.14 on Cardmarket (prices change frequently).