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Continuous If there are no cards with the word "Yggdrasil" in its name in any field, Activate of this card cannot be used.
Enter Search for a card named "Duneyrr, the Herald of Change", from your main deck, reveal it and put it into your hand. Then shuffle your main deck.
Activate Discard a card named "Duneyrr, the Herald of Change" from your hand: Recover this card. This ability can be activated only once per turn.