Igknights Unite 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, Igknights Unite is Unlimited.
YGOPRODeck lists Igknights Unite for these formats: Duel Links, Common Charity, TCG, OCG, Master Duel.
Igknights Unite belongs to the Igknight archetype—use that tag when searching for engine pieces and tech options.
A listed print of Igknights Unite appears in 2017 Mega-Tin Mega Pack (MP17-EN155) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Igknights Unite is about $0.03 on Cardmarket (prices change frequently).
