I love this game ^-^ I always make my own sub-class biological, called Venom Claws. It consists of Envenom(x2), Infect, Slash(x2), Leading Strike, Predator Form, and Toxic Form. I usually start the match with Toxic Form, leading into infect, then through the two envenoms, and a leading strike. when I finish my toxic form, I go into my predator form, and use both slashes, leading strike, and another slash. After both my forms need to recharge, I use a combination of the slashes and poison types. If you guys want to make any suggestions, please tell me ^^.