Silver's Cry 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, Silver's Cry is Unlimited.
YGOPRODeck lists Silver's Cry for these formats: Duel Links, Common Charity, TCG, OCG, Master Duel.
A listed print of Silver's Cry appears in Duelist Pack: Rivals of the Pharaoh (DPRP-EN030) at Super Rare rarity.
Among markets shown on this page, the lowest listed snapshot for Silver's Cry is about $0.15 on TCGPlayer (prices change frequently).
