I do not like this card, simply because fire already is a rush element that deals a ton of damage in very short time, it doesn't need to have its damage upped. However, this would be good if you take off the +1 attack and just do +1 or +2 hp. You can still leave the ablaze idea since fire eaters and fire spirits have 0 attack at first.
-EDIT-
By the way, awesome art! I like how it sort of looks like a phoenix.