Jam Breeding Machine is a Continuous 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, Jam Breeding Machine is Unlimited.
YGOPRODeck lists Jam Breeding Machine for these formats: GOAT, OCG GOAT, Duel Links, Common Charity, Edison, Speed Duel, TCG, OCG, Master Duel.
Jam Breeding Machine belongs to the Slime archetype—use that tag when searching for engine pieces and tech options.
A listed print of Jam Breeding Machine appears in Dark Beginning 1 (DB1-EN229) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Jam Breeding Machine is about $0.10 on Cardmarket (prices change frequently).
