Kraan-Djir, The Risen

+2: Discard a card. If you discarded an artifact in this way, return 2 cards chosen at random from your graveyard to your hand.
-X: Search your library for X Artifact cards and put them in your graveyard. Then shuffle your library.
-10: You gain an emblem with "Whenever you cast a spell or activate an ability that targets your graveyard, each opponent discards two cards."