Blackboost 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, Blackboost is Unlimited.
YGOPRODeck lists Blackboost for these formats: Duel Links, Common Charity, TCG, OCG, Master Duel.
Blackboost belongs to the Blackwing archetype—use that tag when searching for engine pieces and tech options.
A listed print of Blackboost appears in Legendary Collection 5D's Mega Pack (LC5D-EN144) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Blackboost is about $0.11 on TCGPlayer (prices change frequently).
