User blog comment:Creator613/Question/@comment-1221909-20100924213523

I think Rhotuka launchers can focus Elemental powers, though only if the user actually has control of that element, for example, A Toa of plasma with a Rhotuka launcher may be able to launch plasma Rhotuka. Though some Rhotuka may also have other abilities if they reflect the personality of the character.

Does that help?