If you play a super-duper powerful card right away (like a planeswalker), dont be surprised if your opponent counters it
Although this deck doesnt focus on lifelink so much as it profits for it, you could easily adapt it to a greater lifegain focus
The one innovation was that, while Innistrad only had DFCs that were a creature on both sides (and one planeswalker on both sides at mythic rare), Dark Ascension had two DFCs that started as artifacts, one of which wasn't even a creature on the back face
I got a game in with it on Tabletop Simulator, but over half of the cards I happened to draw were lands and the others weren't particularly helpful
1 Prossh, Skyraider of Kher
(2013-06-07) The persist ability triggers when the permanent is put into a graveyard