Now it's your turn! Here is the art description from which Adam Paquette drew Varolz, Below the art description you'll get to see both the sketch and the final art.
Color: Black Green Legendary creature (Golgari guild)
Location: Golgari turf
Action: Show Varolz the Golgari troll, chosen to represent the Guild in the Dragon's Maze. He's who the Golgari call upon when there is real danger. Varolz has a symbiotic fungi living on him that repairs his wounds, replacing his skin with tough scar tissue which means that the more battles he's in, the tougher he gets. He has a wicked looking knife and some totemic Golgari charms on him. Varolz is about 12-15 feet tall.
Focus: Varolz the Scar-Striped.
Mood: Tough and battle hardened.