Magneto

Flying

At the beginning of your upkeep, you may look at the top card of target player's library and reveal it. If the revealed card is an artifact, put it on to the battlefield tapped and under your control.

{2}{b}{t}: Destroy target artifact. Magneto deals damage to any target equal to the artifact's casting cost

{u}{u}{t}: Return target artifact from any graveyard to the battlefield tapped and under your control.