Flash of the Forbidden Spell 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, Flash of the Forbidden Spell is Unlimited.
YGOPRODeck lists Flash of the Forbidden Spell for these formats: Duel Links, Edison, Common Charity, Speed Duel, TCG, OCG, Master Duel.
A listed print of Flash of the Forbidden Spell appears in Cyberdark Impact (CDIP-EN038) at Rare rarity.
Among markets shown on this page, the lowest listed snapshot for Flash of the Forbidden Spell is about $0.07 on Cardmarket (prices change frequently).
