Ritual Foregone 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, Ritual Foregone is Unlimited.
YGOPRODeck lists Ritual Foregone for these formats: Duel Links, Common Charity, Edison, TCG, OCG, Master Duel.
A listed print of Ritual Foregone appears in Cyberdark Impact (CDIP-EN039) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Ritual Foregone is about $0.10 on TCGPlayer (prices change frequently).
