Why build a deck when you can use somebody else's, right
You sacrifice the token at the beginning of your next end step
From most valuable to least valuable, these include: Valgavoth, Terror Eater Kaito, Bane of Nightmares The Wandering Rescuer Tyvar, the Pummeler Niko, Light of Hope Among the cards in Duskmourn , there are 13 of them that are going for over $70: all 10 of the fracture foils, along with textured foil versions of Valgavoth, Terror Eater
(4/15/2013) Controlling multiple Gates with the same name has no effect on your ability to win the game with Maze's End
Artificers Assistant is another cheap way to ensure you can keep digging, while The Reality Chip gives you nice redundancy for your Commander but also opens you up to play lands and instants/sorceries/creatures etc