This is actually the second Black Cat in my universe, Felicity Hardy-Frost, although she's already assumed the codename when the story begins. Through a process I won't reveal (why spoil the story), Felicity gains a genetic form that's the hybrid of both Emma and Felicia Hardy-Frost. Felicity has two distinctly different powers, drawn from the abilities of her two mothers. Like Felicia, she has the ability to affect probabilities, usually manifesting as a black energy blast. She can also use this ability to fly. From Emma, she has inherited the ability to morph between her flesh and blood body and an indestructible organic diamond body. Unlike her mother, however, Felicity can still access her other powers while in this form although flying is much more difficult.
Art (c) SE Kimble
Black Cat (c) Marvel Comics