What would Mega Lucario look like if he had been part Dragon?
Oh, wow, good question! First thing is that it'd have a dragon-like body, sort of like Dragonite, Salamence, and Flygon. Secondly, it'd be growing a pair of wings on its back, which it would use to fly around like most dragons do. :P I would imagine its hands and legs become a little shorter, and its tail would grow bigger and longer.