How could someone be a man-made empath? Emma was pretty sure she didn't really want to know the answer to that question.

She shook her head. "She's a mutant, like me. Or like I usually am." At the moment, according to Regina, she was some kind of sorceress, but that didn't stop Emma from thinking of what she'd sort of learned she could do in comparison to mutants with similar abilities. Reality warping. Teleporting.

...Pyrogenesis.

"She was born that way, but her powers didn't manifest until she was a teenager. That's pretty common with the X-gene."