Poison , rock , grass and Bug make the most sense and are easy to add in.
Normal/dragon could be a Faerie dragon pokemon which is awesome.
Fighting dragon will look dumb imo. Too much like a cartoon less like an animal.
I dont think the Musketeer trio "look" like they're fighting types but they are, so to say a fighting/dragon pokemon would look stupid is completely subjective to how u picture a dragon/fighting pokemon. --- Pokemon Diamond-Name:Jack / FC:0043-9308-0032