Fusion Reptilian

Reptilian mutates have had their DNA fused with the DNA of any cold-blooded vertebrate of the class Reptilia, comprising the turtles, snakes, lizards, crocodilians, amphisbaenians, tuatara, and various extinct members including the dinosaurs.

Traits
These mutates tend to have the behaviors, as well as bodily features, of the reptile that they are fused with. For instance, they will generally have scaly skin, teeth, and tails. Some tails will be growing from their lower back, or, in the case of snake mutates, the tails will be instead of human legs. Also, they will tend to be cold-blooded, both physically and emotionally, but, if you become friends with one, they will make an invaluable ally.