Toa of Shadow

Toa of Shadow were Toa who had all Light drained out of them. They became corrupt and evil, and gained the ability to create and control Shadow. There were a few ways for Toa of Shadow to exist as they do not occur naturally in the universe. One was to create a Shadow Matoran and give them a Toa Stone. Another was draining any Toa of all their light like how Tridax did to Countless Alternate Takanuvas. Toa of Shadow could be either Male or Female.

Known Toa of Shadow
A unknown number of Takanuva's that Makuta Tridax took from alternate Universes and drained their light. It is unknown how many there are but what is known is that three of them were killed by an alternate Teridax.

Trivia

 * Ahkmou was originally supposed to be released as a Shadow Toa in 2008.