Blade Knight is a Ultra Rare Effect Monster card from Yu-Gi-Oh! (Speed Duel: Attack from the Deep, SBAD). Current market price: $0.51.
Ultra Rare
Speed Duel: Attack from the Deep (SBAD)
Card Text
Gains 400 ATK while you have 1 or less cards in your hand. If you control no other monsters, the effects of Flip monsters destroyed by battle with this card are negated.
