Convulsion of Nature 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, Convulsion of Nature is Unlimited.
YGOPRODeck lists Convulsion of Nature for these formats: GOAT, OCG GOAT, Common Charity, Edison, TCG, OCG.
A listed print of Convulsion of Nature appears in Dark Beginning 2 (DB2-EN193) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Convulsion of Nature is about $0.57 on TCGPlayer (prices change frequently).
