Cyclone Boomerang is a Equip 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, Cyclone Boomerang is Unlimited.
YGOPRODeck lists Cyclone Boomerang for these formats: Duel Links, Common Charity, Edison, TCG, OCG, Master Duel.
Cyclone Boomerang belongs to the Elemental HERO archetype—use that tag when searching for engine pieces and tech options.
A listed print of Cyclone Boomerang appears in Dark Revelation Volume 4 (DR04-EN162) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Cyclone Boomerang is about $0.13 on Cardmarket (prices change frequently).
