Leveler [Mirrodin] Superman Set: Invasion Type: Creature —

Set: Invasion Type: Creature — Phyrexian Zombie Assassin Rarity: Rare Cost: {2}{B}{B} {T}: Destroy target creature if it shares a color with the most common color among all permanents or a color tied for most common

As Alhammarret

"We can't control enemies who have no regard for their own survival

While you're searching your library

incredible

Leveler [Mirrodin] Superman Set: Invasion Type: Creature —Set: Mirrodin Type: Artifact Creature Juggernaut Rarity: Rare Cost: {5} When Leveler enters the battlefield, exile all cards from your library. Once a century, the levelers rip through every corner of Mirrodin, obeying the commands of an unseen master.