[quote=Torris]
-In addition to being proficient at using his abilities, Zor'el is also physically formidable. His skin is more beast than human. It is hardened to feel almost like stone.
[/quote]
You need to make him a specified ferus out of the selection. 

[quote=Torris]
Combustion Inducement: Z can cause anything he grabs a hold of to spontaneously combust into crimson red flames. He must hold on to this object for up to 15 seconds.
Hell Flashover: When in a confined area, Zor'el can gather or manipulate fire and heat until everything in the area ignites causing an extremely dangerous situation for anyone not named Zor'el trapped in the area as well.
[/quote]

These two abilities are extremely powerful. I do not feel comfortable allowing them. 

[quote=Torris]
Gift of Lucifer: Z uses his magic abilities to drain the heat from any source that emits it. For example, he can drain the heat from a small fire(extinguishing it) and use it to launch a controlled heat blast.
[/quote]

So this ability would be more like a buff, allowing you to use less stamina/Mana when fire is already present and other abilities. Just like any other elemental Magic user. If they manipulate an element, it costs less if the element is nearby. This wouldn't necessarily boost his overall power, just make abilities cause less stamina/mana. (And it wouldn't cut the cost in half, to high of a reduce.)

[quote=Torris]
 Hell's Projectiles, Super-heating body, Flight
[/quote]

Hell's projectile is should be kept an eye on, when it comes to Mana/Stamina cost. In retrospective of complexity of projectile casted and power or lethality behind it. The disc and smoke wouldn't cost nearly as much as the missile with explosion on impact. 

Super-heating, the mana/stamina factor would greatly depend on amount of the body engulfed in fire. Added in with the intensity or heat of the fire/increased. Your character would never supply heat or fire on his body. That would melt things like armor or swords. 

 Flight/speed boosts needs to be watched when it it comes to extended use of the ability. Other then that its chill.