Daji, Mass-Produced Queen (MC07-002 R) [Memoria Collection 07]

"Villains" [Quickcast] [Enter] You may search your deck for a Dragon, reveal it and put it into your graveyard. If you do, shuffle your deck. If you revealed a Dragon this way, this card deals 500 damage plus an additional X damage to your opponent, where X is the amount of life your opponent gained this turn, and your opponent cannot gain life until end of turn. [Rest]: Destroy target Machine J/resonator you control. If you do, draw two cards, then discard a card [Revolution] - [Enter] You may put a Dragon from your graveyard into your hand.