DoomZ Command "D.O.O.M.D.U.R.G."

Once per turn, during the Standby Phase: Inflict 500 damage to the controller of the equipped monster. A "DoomZ" monster equipped with this card, or a WIND Machine Xyz Monster that has this card as material, gains the following effects.<br>• Your opponent cannot target this card with card effects.<br>• Once per turn (Quick Effect): You can activate this effect; destroy 1 other face-up card you control, also for the rest of this turn, this card gains ATK equal to its own Level/Rank x 100, can attack directly, and if it battled, it is destroyed at the end of the Damage Step.