Necroid Synchro 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, Necroid Synchro is Unlimited.
YGOPRODeck lists Necroid Synchro for these formats: Duel Links, TCG, OCG, Master Duel.
Necroid Synchro belongs to the Roid archetype—use that tag when searching for engine pieces and tech options.
A listed print of Necroid Synchro appears in Duelist Saga (DUSA-EN015) at Ultra Rare rarity.
Among markets shown on this page, the lowest listed snapshot for Necroid Synchro is about $0.15 on Cardmarket (prices change frequently).
