OP Aggro Lifegain deck? (Standard)

Just know that you'll be floating between 60 and 80 health, most of the time.

Lifegain has always been my favourite mechanic, but this deck is something else.

Sorin is a complete powerhouse: giving your own pridemates lifelink is huge since now if they're 8/8s and they get chump-blocked by a 1/1, it's going to gain you 8 life. same is true for bloodthirsty aerialist - which also has built in evasion.
Sorin has graveyard recursion as well, for cards like Angel of Vitality (which I think is the true powerhouse of the deck).

Ajani is also fantastic, as in the early game ii can be a couple pridemates and some lifegain, while in the mid to late game his "0" ability (exiling all of your opponent's creatures and artifacts along with Ajani himself) is going to be really, REALLY easy to accomplish (given that you have to be at 40 life - at least).

The deck is budget, easy to pilot and a lot of fun.

I've been having a blast, try the deck out and let me know what you guys think by commenting!!

EDIT: Replaced Temple of Silence (x3) with a weirdly much more synergistic Scoured Barrens (x4)