Toa Nexisian is the serious member of the toa Zara. he is not evil because his element is Darkness, not shadow like the makuta are. his mask is the Kanoa Argoth, the great mask of Cleansing, which allows him to cleanse creatures, and people of shadow leach infection an other types of shadow Corruption. he can also use it to destroy darkness and Heavy fog.
His weapons are the Great staff of darkness, the great sword of dark-fire, and the Claw of Purity.