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.