Nitro Warrior (German) - "Nitrokrieger" (AC11-DE021) - (Ultra Rare) - Advent Calendar 2011 (Adventskalender) Limited

"Nitro Synchron" + 1 non-Tuner monsters Once per turn, during a turn in which you activated a Spell Card, this card gains 1000 ATK during damage calculation only. If this card destroys an opponent's monster by battle, you can switch 1 face-up Defense Position monster your opponent controls to Attack Position. Then this card attacks that monster once again in a row.