Necro Fusion is a Normal Trap Card.
Trap Cards are normally Set first and can be activated on a later turn, often in response to an action.
On the current TCG and OCG Forbidden & Limited lists tracked here, Necro Fusion is Unlimited.
YGOPRODeck lists Necro Fusion for these formats: Duel Links, Common Charity, TCG, OCG, Master Duel.
A listed print of Necro Fusion appears in 2019 Gold Sarcophagus Tin Mega Pack (MP19-EN210) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Necro Fusion is about $0.08 on Cardmarket (prices change frequently).
