He's a male Vahnu which are lizard-mammal-like creatures.
He's very predatory but usually puts on a shy mask not showing his true colors until it's too late. He's very cunning and sly, he does not like being out in the open with lots of people and prefers the night. Slizzark is very agile and can usually catch anyone.

Adopted from/Vahnu species © sephrendemon
Character © Me