Cynet 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, Cynet Fusion is Unlimited.
YGOPRODeck lists Cynet Fusion for these formats: Common Charity, Duel Links, TCG, OCG, Master Duel.
A listed print of Cynet Fusion appears in 2019 Gold Sarcophagus Tin Mega Pack (MP19-EN193) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Cynet Fusion is about $0.08 on Cardmarket (prices change frequently).
