Legendary Planeswalker — Dack
+1 : Target player draws two cards, then discards two cards.
−2 : Gain control of target artifact.
−6 : You get an emblem with "Whenever you cast a spell that targets one or more permanents, gain control of those permanents."
If you gain control of a permanent another player owns, and that player leaves the game, the permanent will also leave the game.