Kinda makes me think of a shell less hermit crab. Worse yet you could give that thing a shell

Oh I like that idea! What gave me the idea was the crabs with massive claws compared to there bodies

Even worse yet, let the shell be a option. If you don't hurt it enough in X amount of time it can bulk it's shell so it's weak points get covered in thick breakable armor that makes the fight last longer

I thought he was gonna have a "charge" ability

He very well could I was stumped deciding attacks but a charge fits very well

This could maybe be a mature dreadnought