Doom Vipers (Earth-4001)

"I cannot stand by and watch something even this repulsive fall to the Visorak. Capturing a Doom Viper means keeping your distance and making sure it is unconscious before going near. Bomonga discovered a few stasis tubes still intact in the Archives, so I am keeping these monsters stored in them, where I hope they will stay forever."

- Toa Norik

Doom Vipers are six headed snake-like Rahi created by Makuta Chirox.

History
The history of the Doom Vipers is the same as their mainstream counterparts.

Biology
Doom Vipers have toxic breath that can kill any forms of life, with the exception of others of their kind. Due to this, only mechanical beings like Vahki have much success against them.