I kind of wondered how the ideas for each came and while I’m still thinking about it, do the agori/glatorian helmets provide for the wearer?
I don’t believe Greg was involved with bionicle when the kanohi were introduced.
Agori/Glatorian helmets have no powers.
I wasn’t involved with the initial idea of Kanohi. Generally, mask power ideas came from the story team as a whole. I can’t recall creating very many on my own.