Body Black with a white marking in the shape of a crescent moon (like U) under the horn, and a star-like white marking on one of the hind calves (right above the hoof). The tail is like a lion's (if possible). Also if possible, he has extra tuft at the ears and under the mouth. The latter two are not necessarily mandatory, though.
Eyes: Dark Blue, a stubborn/fierce expression, with a glint in his eye.
Hair: Semi-long, Black, with a green gryphon feather in it.
Cutie Mark 8D: A white crescent moon and star in a flame.
Brief Character Description: Originally, Aljan is the headstrong battleprince in Meredith Ann Pierce's Firebringer triology. Although brought up as 'royal' it turns out that he is the result of an affair between his dam and an 'outsider'. He is a seer, and likes to challenge the rules if he does not understand them (or just for the sake of challenging the rules, haha). For the sake of MLP, I'm keeping the personality, but obviously not the actual backstory ^w^
+ Ref pics where possible: [x] [x] [x] [x]
Fireflight: The current design is approved conditionally, which is to say only for special customs [laddered auction/RLC or where stated], due to his extra markings and complicated edits.
Firebringer is a suitable Phony name.
Just to let you know that the cutie mark can't be made barely visible because it's an integral part of Phonies! But you can make the cutie mark grey if you like. Also, due to the fact that My Little Phony is set in a theme park, you would have to adapt his backstory and description to the setting, and make it more plausible in our world of scientific constructs since they're literally made out of plastic ponies. lol It would be unlikely then, that he has a backstory like that, but he can retain his personality. However, his memory could be constructed for him to believe he has such a backstory. It's up to you.