Junktroller by tapping it, putting any card an opponent has in their graveyard that they cannot have multiples copies of in their deck onto the battom of their library.
Cast
Tunnel Vision by paying ({5} magic symbol) ({U} magic symbol) , naming the card that was put into the bottom of the opponent's library. This will cause the opponent to mill their entire library until they reveal that card and put it on top of their library.
Cast
Archmage's Charm by paying ({U} magic symbol) ({U} magic symbol) ({U} magic symbol) , causing the opponent to draw two cards and lose the game due to drawing from an empty library.