Duelist Alliance 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, Duelist Alliance is Unlimited.
YGOPRODeck lists Duelist Alliance for these formats: Common Charity, TCG, OCG, Master Duel.
Duelist Alliance belongs to the Magician archetype—use that tag when searching for engine pieces and tech options.
A listed print of Duelist Alliance appears in Battles of Legend: Relentless Revenge (BLRR-EN097) at Ultra Rare rarity.
Among markets shown on this page, the lowest listed snapshot for Duelist Alliance is about $0.10 on Cardmarket (prices change frequently).
