Ante is a Normal Spell Card.
Spell Cards are usually activated from the hand on your turn unless their type gives another timing window.
On the current TCG and OCG Forbidden & Limited lists tracked here, Ante is Unlimited.
YGOPRODeck lists Ante for these formats: GOAT, OCG GOAT, Duel Links, Common Charity, Edison, TCG, OCG, Master Duel.
A listed print of Ante appears in Battle Pack: Epic Dawn (BP01-EN074) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Ante is about $0.23 on TCGPlayer (prices change frequently).
