Initial perceptions are like this... Black Red usually wants to be aggro, hit fast, hit hard, and not screw around...
Add
4x
Demigod of Revenge 
(because hes a bada**, big hitter by air, can be sacrificed and re-animates with another for free)
4x
Blightning 
(more damage pump for spitfire and some discard benefits)
Remove
1x Blood reckoning (rakdos don't like defense... go for the throat!)
1x Stuffy Doll... (too passive without a combo)
1x burnt offering. (if you must go mana accel, go for dark ritual)
2x inferno titan. (Too slow)
2x hellrider (too weak)
1x curse of bloodletting (at 5 mana you can do better, and likely they will already be seriously injured.)
