Durathror, the Herald of the End (2-064) [The War of Valhalla]

Resonator : Divine Beast [Continuous] You cannot summon this card, or put it into any field unless "Dainn, the Herald of Beginning", "Dvalinn, the Herald of Continuation" and "Duneyrr, the Herald of Change" are in any fields. [Enter] Search for a card from your main deck and put it into your hand. Then shuffle your main deck. [Activate] [Rest], banish a card with the word "Yggdrasil" in its name in your field : Destroy all resonators and J-ruler in your opponent's field.