Keep in mind that with Fire Servant on the table, if you cast Char, it doubles the damage to you and your opponent. I'm not saying don't use the combo, just be careful. I would also recommend using more Ogre Battledrivers rather than Hazoret's Favor, since they are both essentially the same thing, but having a creature is better than the enchantment. I would also decide if you want the deck to burn your opponents down, or attack them with hasted creatures, because the deck list as is doesn't have a lot of decent sized creatures to take advantage of Ogre Battledriver. You probably won't attack with a 4/2 Guttersnipe or Ember Hauler since they'll most likely die in combat. Just some thoughts.