Sevis are a race of Rahi, that live underground in the Black Sun level of Onu-Taran in the cocolans mines (But have now became the Sevis Cave) and was founded by a Po-Matoran. The Sevis have good night vision and mostly come out of there cave at the night and head to the upper surface. there is 90% chance of one of the Sevis to come out in the day, out side of there cave, when this happen the Rahi will go wild because of the sun light.
A wild Sevis will mostly have a deadly gas and start to have dark red eyes and a matoran must not try and attack the Rahi, Somehow only a Toa can fight the Rahi. To try a take the Rahi back to its home and not killing it, must use a Kanohi Komau and put in a special pod to take outside of the city/village to keep it from killing any matoran with its deadly gas.
The Rahi Tail defense that shoot our a deadly gas and it as well have one claw on the front to attack its prey.
Will this Matorian get save or become sevis lunch.