2 Insect monsters
Krawler monsters this card points to cannot be destroyed by battle, gain 300 ATK DEF, and if they battle your opponent s monster, any battle damage they inflict to your opponent is doubled. If this face-up card is destroyed by battle, or leaves the field because of an opponent s card effect while its owner controls it: You can target 2 Krawler monsters with different names in your GY; Special Summon them in face-down Defense Position.