User blog comment:TheLostGreatBeing/If I ruled the BIONICLE Universe.../@comment-906080-20100911145539/@comment-1610819-20100911192158

Roodaka is a normal Vortixx with no power. Tuma is a normal leader-class Skrall with (again) no power.

Karzahni does have power, but he's not nearly on the power level of a Great Being. He just has a bunch of Kanohi powers. A Makuta could own him, and I don't see Teridax on your list. (Wait, hasn't that already happened?)