I liked him as Flamepaw when he was so damn angry at absolutely everything and everyone. But then he became incredibly boring. If someone asked me to describe Nightheart's personality, all I could say would be "generic male protagonist". Also he has no stake in the plot of A Starless Clan. Why is he there? If his pov was removed, absolutely nothing would be lost.

Anyway, I gave his design the same shapes I give Firestar. Because you know. He's compared to cat Jesus for absolutely no reason. Might as well give some sort of reason.