Speed Warrior is a Super Rare Effect Monster card from Yu-Gi-Oh! (Duelist Pack Collection Tin 2010, DPCT). Current market price: $0.15.
Super Rare
Duelist Pack Collection Tin 2010 (DPCT)
Card Text
Once per Battle Phase, if this card was Normal Summoned this turn (except during the Damage Step): You can make its ATK become double its original ATK, until the end of the Battle Phase.
