Destroy 1 "DoomZ" card in your hand, Deck, or face-up field, except "DoomZ Changer". If this card is destroyed by card effect: You can add 1 "DoomZ" card from your GY to your hand, except "DoomZ Changer", then you can Special Summon 1 "DoomZ" monster from your hand. You can only use each effect of "DoomZ Changer" once per turn.