I refuse to believe that Grima is all of the Earth Dragons fused. He doesn't even look like an Earth Dragon. More like how Loptyr and Medeus were: Dark Dragons.
Also, Grima doesn't give the same speech as the former two. He just says DAMN YOU.
Beldo is the worst, no contest. He's just a Loptyrian priest with a stone spell. No unique sprite, no nothing. His chapter is daunting, but the build-up is ruined when you see this joke.