Machine Duplication 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, Machine Duplication is Unlimited.
YGOPRODeck lists Machine Duplication for these formats: GOAT, OCG GOAT, Duel Links, Common Charity, Edison, TCG, OCG, Master Duel.
A listed print of Machine Duplication appears in Amazing Defenders (AMDE-EN054) at Rare rarity.
Among markets shown on this page, the lowest listed snapshot for Machine Duplication is about $0.09 on Cardmarket (prices change frequently).
