I think you have your mask powers mixed up.
karzhani as the witch king and makuta as sauron?
Rahimon
It exists
I guess a Bionicle-Power Rangers thing would work? I mean it’s pretty obvious who would be who so I’m not going to list of characters but it’s a sort of generic idea?
the kolhiihead
good guy show
The Rhotuka spinners are the best Bionicle spin-offs.
Overtoa. Pohatu is genji
Onua is Winston
Umarak is reaper
Gali is tracer
That’s all I can think of
Metru-nui 2033
-Horror first person shooter set in a post apocalyptic metru-nui infested with rahi and a new species, toa-novus, called the Dark Ones
The toa must find a top secret weapon to destroy the dark ones
good guy show
Chronicles of Solek /s
A movie set up kind of like Predator, but featuring a Baterra instead.
A Baterra vs Bohrok movie.
Battera vs Bohrok: dawn of cleaning
So, it would be a mediocre movie based on the fact that one of them says Martha?
Pretty much
the best spin off
spoilers
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Hero Factory
Bionicle vs Hero Factory: Dawn of CCBS
A fun in Lego one would be Ninjago replaced with Bionicle characters, that’s all off the top of my head.