User blog comment:Oshbosh/The Invasion of the Daleks: The Invasion of Voya Nui/@comment-4098900-20121106131853/@comment-422690-20121112132041

Gali Nuva is the only (canon) Toa to use a Nova Blast. It leveled an entire island.

But I think Hawk was trying to say is that all of the Toa can use it.