Goblin's Secret Remedy 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, Goblin's Secret Remedy is Unlimited.
YGOPRODeck lists Goblin's Secret Remedy for these formats: GOAT, OCG GOAT, Duel Links, Common Charity, Edison, TCG, OCG, Master Duel.
A listed print of Goblin's Secret Remedy appears in Legend of Blue Eyes White Dragon (LOB-099) at Rare rarity.
Among markets shown on this page, the lowest listed snapshot for Goblin's Secret Remedy is about $0.02 on Cardmarket (prices change frequently).
