This is a Xenan Destiny combo deck that will play as many units as you want until you cancel the combo by sacrificing the pieces. It is also extremely resistant to board wipes and the only weakness I can find is In Cold Blood or Voidbinding your graveyard.
The goal is to ramp with time like normal with the help of Mask of Torment (also to stay alive vs aggro). Then play Talir (Unit Destiny) into a Time Merchant for Vodakhan (Power Destiny). You will then draw and play your entire deck and usually end up with only recursion spells (Dark Return) in hand and will have over 20+ power to do it again the next turn. You may cancel the combo anytime by sacrificing Talir and Vodakhan to new units and if your deck gets low, you can play a reclaimer to shuffle your void back in.
Dark Return
x4
1
Initiate of the Sands
x4
2
Talir's Favored
x4
2
Teacher of Humility
x4
2
Temple Scribe
x4
3
Auralian Merchant
x4
3
Ayan, the Abductor
x2
3
Scorpion Wasp
x3
4
Devoted Theurge
x4
4
Mask of Torment
x3
4
Sandstorm Titan
x4
5
Alhed, Mount Breaker
x3
6
Predatory Carnosaur
x2
7
Vodakhan, Temple Speaker
x2
8
Talir, Who Sees Beyond
x3
Shadow Sigil
x2
Time Sigil
x5
Amber Waystone
x4
Amethyst Waystone
x2
Crest of Mystery
x4
Seat of Mystery
x4
Xenan Banner
x4
View Deck on Shiftstoned