Visorak

Visorak were a species of venomous spider-like Rahi that inhabited the Matoran Universe.

Original Universe
The Visorak species was created by the Brotherhood of Makuta as part of their mission to populate the Matoran Universe with Rahi.

On Toa Kremika's first mission for the Order of Mata Nui, he was assigned to investigate sightings of dangerous Rahi on an island south of Nynrah by a community that had no knowledge of Visorak. Kremika attempted to talk to the island's residents about these creatures, but those who had seen them were unable to identify them as anything that Kremika was familiar with. In the middle of one of these conversations, the village was stormed by a Visorak horde so large that the sunset on the horizon was blotted out by the thousands of Visorak scrambling over each other as they swarmed through the village. Kremika tried to use his elemental powers to form a wall to block the horde, but was soon overwhelmed by the Visorak and wrapped in a cocoon. When Kremika regained consciousness the following day, he broke his way out of the cocoon to find that the village he had been tasked to protect had been destroyed and that his body had been horrifically mutated by the Visorak's venom. Disgusted by his failures and what he had become, Kremika wordlessly quit the Order and went into a self-imposed exile as a result.

In around 50,080 CMT, a contingent of Visorak and robots loyal to Ricochet were exiled with him to another dimension after Blackout thwarted Ricochet's bid to usurp power.

Roodaka Shakes are made by purposefully agitating the venom of a mutant sub-species of Visorak.

Shattered Mirror Universe
In the Shattered Mirror Universe, hybrids of Visorak and Rahkshi were deployed by SM Trantoshen against the forces of SM Ynot in the Battle of Destral.