-The Toa loses control of the mask power -The mask isnt necessarily organic. -The mask becomes fully sentient, considered another character, except, y'know, without the element and actual bodies and weapons and all that. -The mask and the Toa are not in perfect cohesion. You're using 2 brains now, which is an advantage, but the fact that there are always fallouts between 2 characters means most of the time, it's a struggle. -You're gonna have to follow the Anxilia plot. Any questions, feel free to PM me. I fell in love at "fully sentient."