This is my favorite concept deck, named "ULTIMA".
Ultima is a control drain-life deck. The "ultima" concept is to slowly reach a power level so extreme that most defenses become worthless.
Exponential mana growth (Cabal Coffers , Crypt Ghast ), card advantage (Phyrexian Arena ), control spells/continual life gain, and finally a massive multi-opponent non-targeting and non-preventable drain-life (Exsanguinate and Kokusho, the Evening Star ).
Nirkana Revenant should most definitely be in the main deck if you have a copy.
Sorin Markov Could be fun to abuse card:Sorin's Vengeance and to control their turn
Yeah I looove Sorin. But he's too slow to boot. I'm waiting for the next Sorin planeswalker card, hoping he'll be cheaper, and have a big draining ultimate ability :)
Yeah, heard Sorin's family lives on the plane of Innistrad. He has to visit them in Dark Ascension :)
@theonyc - It's from Genzoman's gallery on Deviantart. He's one of my favorite artists. Check his stuff out, it's mind blowing :))
I have made similar deck. Can you check it and give feedback?