Kuji-Kiri Curse 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, Kuji-Kiri Curse is Unlimited.
YGOPRODeck lists Kuji-Kiri Curse for these formats: Common Charity, TCG, OCG, Master Duel.
A listed print of Kuji-Kiri Curse appears in 2021 Tin of Ancient Battles (MP21-EN028) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Kuji-Kiri Curse is about $0.12 on Cardmarket (prices change frequently).
