Overseer Beholder

Mass Charm--{u}{u}{u},{t}: Until end of turn, gain control of each target creature whose combined
power is less than this creature's power.
Telekinesis --{u}{u/b}{b},{t} Sacrifice an artifact you
control to deal X damage to any target where X
is that artifact's mana cost.
Chain Lightning--{u}{u/r}{r},{t}: Deal 3 damage to any
3 different targets.
Ward 3