Generation Force 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, Generation Force is Unlimited.
YGOPRODeck lists Generation Force for these formats: Common Charity, TCG, OCG, Master Duel.
A listed print of Generation Force appears in OTS Tournament Pack 30 (OP30-EN019) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Generation Force is about $0.13 on Cardmarket (prices change frequently).
