Gravedigger Ghoul 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, Gravedigger Ghoul is Unlimited.
YGOPRODeck lists Gravedigger Ghoul for these formats: GOAT, OCG GOAT, Duel Links, Edison, TCG, OCG, Master Duel.
A listed print of Gravedigger Ghoul appears in Legend of Blue Eyes White Dragon (LOB-065) at Rare rarity.
Among markets shown on this page, the lowest listed snapshot for Gravedigger Ghoul is about $0.13 on Cardmarket (prices change frequently).
