Vaults can be progressed by opening packs and the fifth-plus copies of cards, and reward individual cards and Wildcards when completed
In Standard of old, Geist won by creating and slapping face with Angel tokens check out a Craig Wescoe special at Worlds 2011 for a slice of Magic history: Crazy times before the Legendary rule change, right
With Sethron giving it Menace, it becomes a lethal threat very quickly
Marath, Will of the Wild There seems to be something alluring about avoiding taxes (if you ask a bunch of folks in federal prison), and Marath, Will of the Wild gives you that feeling in MTG form
Scry 1 becomes useless as soon as you keep a card on top
It's a fairly effective self mill engine, but also prevents you from losing the game by drawing from an empty library by letting you reanimate a creature instead