Invincibility Barrier is a Continuous 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, Invincibility Barrier is Unlimited.
YGOPRODeck lists Invincibility Barrier for these formats: Common Charity, TCG, OCG, Master Duel.
A listed print of Invincibility Barrier appears in 2019 Gold Sarcophagus Tin Mega Pack (MP19-EN211) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Invincibility Barrier is about $0.07 on TCGPlayer (prices change frequently).
