Cross Attack 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, Cross Attack is Unlimited.
YGOPRODeck lists Cross Attack for these formats: Duel Links, Common Charity, TCG, OCG, Master Duel.
A listed print of Cross Attack appears in Photon Shockwave (PHSW-EN048) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Cross Attack is about $0.05 on Cardmarket (prices change frequently).
