Nitro Warrior [TDGS-EN039] Ultimate Rare

"Nitro Synchron" + 1 non-Tuner monsters Once during each of your turns, If you activated a Spell Card, this card gains 1000 ATK during its next attack, for damage calculation only, Once per turn, /if this attacking card destroys an opponent's monster by battle, you can change 1 face-up Defense Position Monster your opponenet controls to Attack Position, and attack it with this card.