Desdragoyah

A fusion of a good friend (and old geezer)'s OC, Drago and Destoroyah.
Iris called him Cambrian, I said that Drago is now just younger than Destoroyah, and then Iris said to make Drago into Destoroyah. Then she said make Desdragoyah into a monster girl, and so I did.

Oh, and pay attention to the trilobite, if you so please.