Just going over some of the potential from the Mahri Nui pitch.
Very. I think there’s a good way to tie this to the Barraki, as well.
The Barraki in @AntrozT6’s Mahri Nui pitch retain their warmongering natures, and they could be the ones that escalate the abuse of the Kanohi Masks to such an extreme, the Elemental Gods (Nuva) summon forth the Toa to deal with the threat. The Toa are chosen to confiscate the Kanohi Masks from the Barraki and seal them away (the masks in the Suva and the Barraki in prison), and then destroy the blueprints for the masks and the forges that were used to make them.