Darkness Approaches 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, Darkness Approaches is Unlimited.
YGOPRODeck lists Darkness Approaches for these formats: GOAT, OCG GOAT, Duel Links, Edison, Common Charity, TCG, OCG, Master Duel.
A listed print of Darkness Approaches appears in Magic Ruler (MRL-040) at Super Short Print rarity.
Among markets shown on this page, the lowest listed snapshot for Darkness Approaches is about $0.05 on Cardmarket (prices change frequently).
