You can only activate 1 card with this card’s name per turn.
(1) Excavate the top 5 cards of your Deck, add 1 excavated “Krawler” monster or “World Legacy” card to your hand, also send the other cards to the GY. If there were no excavated “Krawler” monster or “World Legacy” card, shuffle all the excavated cards in to the Deck. You cannot Special Summon monsters from your Extra Deck for the rest of this turn, except Link Monsters.