"No there isn't a chance you can change back," Nemesis reiterated. "We can help make the situation more bearable. But there's no changing what you are." It wouldn't be fair to beat around the bush with Jubilee or let her hold onto false hope.
"Okay we can take puppy blood off the list of options, but I was thinking more along the lines of mixing cows blood with some of the stuff from a regenerative mutant."