Aetherworks Marvel [Kaladesh Prerelease Promos] Dragons of Tarkir Prerelease Promos return up to 3 cards

return up to 3 cards you control to your Deck

(If a monster with an A-Counter battles an Alien monster

Lurker of the Loch enters the battlefield

You can Tribute this card to target 1 "Alpha The Magnet Warrior"

Aetherworks Marvel [Kaladesh Prerelease Promos] Dragons of Tarkir Prerelease Promos return up to 3 cardsSet: Kaladesh Prerelease Promos Type: Legendary Artifact Rarity: Mythic Cost: {4} Whenever a permanent you control is put into a graveyard, you get {E} (an energy counter). {T}, Pay {E}{E}{E}{E}{E}{E}: Look at the top six cards of your library. You may cast a spell from among them without paying its mana cost. Put the rest on the bottom of your library in a random order.