Spiral Fusion 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, Spiral Fusion is Unlimited.
YGOPRODeck lists Spiral Fusion for these formats: Common Charity, TCG, OCG, Master Duel.
Spiral Fusion belongs to the Gaia The Fierce Knight archetype—use that tag when searching for engine pieces and tech options.
A listed print of Spiral Fusion appears in 2021 Tin of Ancient Battles (MP21-EN133) at Rare rarity.
Among markets shown on this page, the lowest listed snapshot for Spiral Fusion is about $0.02 on Cardmarket (prices change frequently).
