Dark-Piercing Light 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, Dark-Piercing Light is Unlimited.
YGOPRODeck lists Dark-Piercing Light for these formats: GOAT, OCG GOAT, Duel Links, Common Charity, Edison, TCG, OCG, Master Duel.
A listed print of Dark-Piercing Light appears in Dark Beginning 2 (DB2-EN087) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Dark-Piercing Light is about $0.22 on Cardmarket (prices change frequently).
