Lilly is just your every day anthro opossum, with a little twist. She is infected with a genetic parasite. The parasite lives in symbiosis with it's host. It grants her different abilities and things, but like any parasite, it comes at a price. If she over uses her powers or anything it will cause damage to her body and her heart, seeing as that's where the parasite stays. If she was to keep over using her powers, she would spontaneously com bust. As for powers, she hasn't discovered them all yet. [I'm still working on them]

Other than that, she is just a normal opossum