"Hi there, I'm Grok. I learned early on this world is full of things that want to either eat you or enslave you, and it's way better to blow those things up. One day, I'll be the most powerful wizard ever; but to do that it takes a lot of research which I can't do on my own, so I like hanging out with Finn and Gryvine. We keep each other honest."
Grok Dzuwa is roughly 5 foot tall, maybe a bit taller, and a frame that would be a human that's about 175 but has a turtle shell. He has green skin and black eyes, His shell has pyramids on it, like that of a snapping turtle with each side of the pyramid having a different arcane symbol. His single upper front "tooth" is a slightly lighter green with black vertical lines through it. His frontal shell is divided in 4 hexagonal plates also have arcane symbols on each plate. His arms end in what you can only describe as a flipper-hand mix with claws and the end of what looks to be fingers. His short legs, and you're guessing they are short because it's kind of hard to judge with the shell there, lead to set of flipper/feet. He carries on him a staff with what appears to be teeth embedded at its head.
Grok was born out of a hatch with 6 other eggs. He does not remember his parents before he was taken prisoner by a red dragon. He grew up with the dragon, not really knowing what a tortle was. Out of his loneliness he developed an imaginary friend, Sokow. To him, Sokow is a female tortle.
After getting away from the red dragon. He met up with Matilda and began working with her, helping to brew potions and learn the arcane arts.