Final Ritual of the Ancients is a Ritual 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, Final Ritual of the Ancients is Unlimited.
YGOPRODeck lists Final Ritual of the Ancients for these formats: GOAT, OCG GOAT, Duel Links, Common Charity, Edison, TCG, OCG, Master Duel.
A listed print of Final Ritual of the Ancients appears in Dark Revelation Volume 3 (DR3-EN224) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Final Ritual of the Ancients is about $0.16 on Cardmarket (prices change frequently).
