This is my variant of R/W (devotion).
Went 4-0 tonight at my local FNM.
Match 1: Black aggro
Lost game 1 because my opponent had more 1 drops and a mutavault.
Won game 2 and 3 because of hasty creatures combined with a good amount of removal :)
Match 2: Black White midrange
Lost game 1 to blood baron.
Sided in mizzium mortars.
Game 2 opponents first play was whip of erebos.
I put down chandra's phoenixes. The turn after he spends time killing them. I get them back with boros charms/lightning strikes and win.
Game 3: Opponent mulls to 5, draws nothing but lands. My hand is full of creatures, so I win easily.
Match 3: R/W Burn
Lost game 1 because of lifegain from warleaders helix.
Won game 2 purely because of peak eruption, and after that hasty creatures to keep hitting him. Opponent spent a few turns attacking me with mutavault and being tapped out, which led me to play all my creatures out.
Won game 3 by first hitting him with cacklers and zealots, then skullcracking a helix and then throwing a boros charm at face for the win.
Match 4: Black aggro
Won game 1 by out-creaturing him.
Won game 2 by playing around bile blights perfectly, and swinging for 4 or 6 every turn, starting at turn 2.
Things I'm considering:
Make skullcrack a 3 or 4 of in the side. Remove revoke existence,