Ancient Gear Fist is a Equip 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, Ancient Gear Fist is Unlimited.
YGOPRODeck lists Ancient Gear Fist for these formats: Duel Links, Common Charity, Edison, TCG, OCG, Master Duel.
Ancient Gear Fist belongs to the Ancient Gear archetype—use that tag when searching for engine pieces and tech options.
A listed print of Ancient Gear Fist appears in Structure Deck: Machine Re-Volt (SD10-EN020) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Ancient Gear Fist is about $0.38 on Cardmarket (prices change frequently).
