Spell Calling 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, Spell Calling is Unlimited.
YGOPRODeck lists Spell Calling for these formats: Duel Links, Edison, TCG, OCG, Master Duel.
A listed print of Spell Calling appears in Power of the Duelist (POTD-EN039) at Rare rarity.
Among markets shown on this page, the lowest listed snapshot for Spell Calling is about $0.17 on TCGPlayer (prices change frequently).
