Backs to the Wall 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, Backs to the Wall is Unlimited.
YGOPRODeck lists Backs to the Wall for these formats: Duel Links, Common Charity, Edison, TCG, OCG, Master Duel.
Backs to the Wall belongs to the Six Samurai archetype—use that tag when searching for engine pieces and tech options.
A listed print of Backs to the Wall appears in Force of the Breaker (FOTB-EN052) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Backs to the Wall is about $0.12 on TCGPlayer (prices change frequently).
