When an opponent s monster activates its effect while you control a Krawler monster: The activated effect becomes return 1 face-up monster your opponent controls to the hand . You can banish this card from your GY, then target 1 Link Monster on the field; Special Summon 1 Krawler monster from your hand, Deck, or GY to your zone the target points to, in face-down Defense Position. You can only use 1 World Legacy s Mind Meld effect per turn, and only once that turn.