Calming Magic 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, Calming Magic is Unlimited.
YGOPRODeck lists Calming Magic for these formats: Duel Links, Edison, TCG, OCG, Master Duel.
A listed print of Calming Magic appears in Raging Battle (RGBT-EN062) at Rare rarity.
Among markets shown on this page, the lowest listed snapshot for Calming Magic is about $0.08 on Cardmarket (prices change frequently).
