Release Restraint Wave 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, Release Restraint Wave is Unlimited.
YGOPRODeck lists Release Restraint Wave for these formats: Duel Links, Common Charity, Edison, TCG, OCG, Master Duel.
A listed print of Release Restraint Wave appears in Ancient Prophecy (ANPR-EN045) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Release Restraint Wave is about $0.02 on Cardmarket (prices change frequently).
