FLIP: You can target 1 Spell/Trap Card on the field; destroy it.
If this face-up card in its owner's control leaves the field because of an opponent's card effect: You can Special Summon 2 "Crawler" monsters with different names from your Deck in face-down Defense Position, except "Krawler Axon". You can only use each effect of "Krawler Axon" once per turn.