Gateway to Dark World 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, Gateway to Dark World is Unlimited.
YGOPRODeck lists Gateway to Dark World for these formats: Duel Links, Common Charity, Edison, TCG, OCG, Master Duel.
Gateway to Dark World belongs to the Dark World archetype—use that tag when searching for engine pieces and tech options.
A listed print of Gateway to Dark World appears in Dark Revelation Volume 4 (DR04-EN108) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Gateway to Dark World is about $0.07 on Cardmarket (prices change frequently).
