A Deal with Dark Ruler is a Quick-Play 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, A Deal with Dark Ruler is Unlimited.
YGOPRODeck lists A Deal with Dark Ruler for these formats: GOAT, OCG GOAT, Duel Links, Common Charity, Edison, TCG, OCG, Master Duel.
A Deal with Dark Ruler belongs to the Archfiend archetype—use that tag when searching for engine pieces and tech options.
A listed print of A Deal with Dark Ruler appears in Dark Crisis (DCR-030) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for A Deal with Dark Ruler is about $0.14 on Cardmarket (prices change frequently).
