Boost Warrior is a Warrior Effect Monster with Attribute FIRE, Level 1, ATK 300, DEF 200.
Monster cards contest the field through Summons, battles, and effects—check Level/Rank/Link and Attribute for Extra Deck or searchers.
On the current TCG and OCG Forbidden & Limited lists tracked here, Boost Warrior is Unlimited.
YGOPRODeck lists Boost Warrior for these formats: Duel Links, TCG, OCG, Master Duel.
A listed print of Boost Warrior appears in Battles of Legend: Armageddon (BLAR-EN063) at Ultra Rare rarity.
Among markets shown on this page, the lowest listed snapshot for Boost Warrior is about $0.29 on TCGPlayer (prices change frequently).
