Magus of Shenanigans

{1}{r}, {t}, Sacrifice Magus of Shenanigans: Destroy target artifact.
Dredge 1 (If you would draw a card, instead you may put exactly one card from the top of your library into your graveyard. If you do, return this card from your graveyard to your hand. Otherwise, draw a card.)
He is always there when the fun begins, and usually is the reason it ends as well...