Darkness and Ravager wear the Kanohi Kraahkan and Avohkii, respectively, in set form. We do know they are not wearing those actual masks. Are these just facial features or are they Kanohi masks in the shape of the Kraahkan and Avohkii?
We also know Gatherer is a heavily upgraded Onu-Matoran. Does he still wear a mask under the armor, or does he no longer require one?
Finally, are Silence and Vanisher wearing Kanohi, or is it just facial features?
And for all of the above, if they are wearing Kanohi, can they use them, and do they need to wear them?