Synchro Barrier 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, Synchro Barrier is Unlimited.
YGOPRODeck lists Synchro Barrier for these formats: Duel Links, Common Charity, Edison, TCG, OCG, Master Duel.
A listed print of Synchro Barrier appears in Duelist Pack: Yusei 3 (DP10-EN026) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Synchro Barrier is about $0.05 on Cardmarket (prices change frequently).
