With the ability to loot for better card selection, and return frightening knights to the battlefield at startling speed, Cavalry Charge is an aggressive, powerful deck, and a really unusual strategy for this color combination
Grand Larceny (Black/Green/Blue) As the name suggests, this deck lets you use the Commander Gonti, Canny Acquisitor, and a variety of other spells to steal and play those of your opponents
(1/24/2013) If you are playing with the top card of your library revealed (due to Garruk's Horde, for example), you'll reveal each card before you draw it.
Those are the three we handed off from Vision Design
While many Planeswalkers have generally powerful abilities, others are much more niche
(If a permanent with a stun counter would become untapped, remove one from it instead.) You may target a creature that is already tapped with Tranquilize