Rage of Kairyu-Shin is a Quick-Play 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, Rage of Kairyu-Shin is Unlimited.
YGOPRODeck lists Rage of Kairyu-Shin for these formats: Common Charity, TCG, OCG, Master Duel.
Rage of Kairyu-Shin belongs to the Umi archetype—use that tag when searching for engine pieces and tech options.
A listed print of Rage of Kairyu-Shin appears in Legendary Duelists (LEDU-EN017) at Rare rarity.
Among markets shown on this page, the lowest listed snapshot for Rage of Kairyu-Shin is about $0.12 on Cardmarket (prices change frequently).
