Alright, Kyrisse, not bad. There is, however, a small thing.

First of, no dragon is immune to fire. They have a very high defensive power, and are tough to hurt, but they can be hurt by anything so long as there's enough power behind it. Now, a Phoenix would be resistant to fire, but not immune: You are not exactly made of it. An Ifrit, however, (fire elemental: A Djinn made of fire) would be immune since their entire body is made of it.

Also, no way in a million years would a Fae be able to hurt a Titan with physical attacks. The Fae are magical powerhouses, but their physical power is laughable. It'll be a bit of work, but please re-write your post to match this :) 

Oh, and on another note, Dragons (and all other Titans by extension) are not "magic users." They are physical powerhouses which walk around and kill everything with raw, physical power. A Dragon would bite, claw, swing with the tail, step on stuff, etc. Their breath attack wouldn't be their primary weapon.