@252469b
There is no “feature” that allows ben transform into mutants or use mutated DNA, what Kuro said was, there’s a failsafe that prevents been from using mutated DNA, Ben can turn that FAILSAFE off, which would be hazardous and dangerous to Ben if he did so. With that failsafe off, Ben would be able to become anything with DNA, from mutants to earth dogs.
Its a Failsafe to prevent, not a Feature to use.