If this card is in your hand or Graveyard: You can target 2 "Graydle" cards you control; destroy them, and if you do, Special Summon this card. You can only use this effect of "Graydle Slime" once per turn. When Summoned this way: You can target 1 "Graydle" monster in your Graveyard; Special Summon it in Defense Position.