Survival of the Fittest [Exodus] San Diego Comic-Con 2013 The renegades mounted an aether

The renegades mounted an aether disruptor aboard a lightweight thopter to destroy Tezzeret's Planar Bridge

Put that many cards from the top of your library into your hand

If there are no more scream counters on it

that permanent's controller puts the top card of their library into their graveyard

Search your library for an artifact card with mana value X or less

Survival of the Fittest [Exodus] San Diego Comic-Con 2013 The renegades mounted an aetherSet: Exodus Type: Enchantment Rare Cost: {1}{G} {G}, Discard a creature card: Search your library for a creature card, reveal that card, and put it into your hand. Then shuffle your library.