Tragoedia (SR01-EN017) [Structure Deck: Emperor of Darkness]

When you take Battle Damage: You can Special Summon this card from your hand. This card gains 600 ATK and DEF for each card in your hand. Once per turn: You can send 1 monster from your hand to the Graveyard to target 1 face-up monster your opponent controls with the same Level as the sent monster; take control of that target. Once per turn: You can target 1 monster in your Graveyard; this card's Level becomes the same as that target's, until the End Phase.