"It is. It's...a thing that happens, when that transformation is unlocked." Trunks replied. "It's not something just any saiyan can do, either." He wasn't bragging, more being informative.

"Like I said, they were a warrior race. Their home planet had ten-times Earth's gravity to start with. They're what you'd consider baseline superhuman compared to a normal human, with heightened senses, a high metabolism, and the ability to use ki more adeptly and easily. They were also enslaved by a galactic emperor to do his dirty work, then wiped out because he was afraid of them."