Doom Viper

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"I cannot stand by and watch something even this repulsive fall to the Visorak ... Bomonga discovered a few Stasis Tubes intact in the Archives, so I am keeping these monsters stored in them, where I hope they will stay forever."
Rahaga Norik, Rahi Beasts

Doom Viper
Creator Makuta Chirox[1]
Powers Poisonous breath
Conservation status Unknown
Known locations Metru Nui (formerly)
Southern Continent (Voya Nui) (formerly)
Spherus Magna[2]

Doom Vipers, also known as Doom Serpents,[3] are six-headed serpentine Rahi.


Makuta Chirox created the Doom Viper species using Viruses and Liquid Protodermis to be one of the Rahi to inhabit the Matoran Universe.[1][4]

The Matoran of Metru Nui first discovered the Doom Vipers on a cargo ship docked in the Ga-Metru harbors. Ga-Matoran were surprised to discover that the crew was missing, though the cargo was still intact. Only later was it discovered that the crew had all been killed by Doom Vipers; by that time, the vipers had already begun making their way to the heart of Ga-Metru.[5]

When the Toa Nuva returned to Metru Nui, they had to battle six Doom Vipers. The Nuva defeated the vipers by using their Kakama Nuva to confuse the Rahi before attacking them.[6]

Doom Vipers also lived on the Southern Continent and, later, Voya Nui. Brutaka once saved Balta, Piruk, Velika, and Kazi from one out of habit by using his Kanohi Olmak to teleport it into a particularly lethal alternate universe.[7] When the Toa Mahri destroyed the Cord and sent Voya Nui back to its place on the Southern Continent, its Doom Vipers may have not survived the descent.[8]

After the Great Spirit Robot was critically damaged in the Battle of Bara Magna, many Doom Vipers emigrated from the Matoran Universe to Spherus Magna.[2]

Abilities and Traits

Aside from its multiple heads, the Doom Viper is most notorious for its breath, which is a toxic compound that is capable of killing any living animal or plant life it touches.[9] Other Doom Vipers are immune to their breath.[5] Vahki, being machines and thus unaffected by the venom, were the only ones successful at capturing these Rahi. Doom Viper breath is also capable of weakening Visorak webbing.[5] They are known to be very aggressive.[9]



Books Online



Story Serials


  1. 1.0 1.1 "Chapter 1." Shadows in the Sky. BIONICLE Legends 9, p. 10.
  2. 2.0 2.1 "Official Greg Dialogue", post 11964. BZPower Forums. (archived on
  3. 3.0 3.1 "Chapter 6." Brothers In Arms.
  4. "The Makuta." Makuta's Guide to the Universe, p. 63.
  5. 5.0 5.1 5.2 "Doom Viper." Rahi Beasts, p. 25.
  6. "Chapter 7." Shadows in the Sky. BIONICLE Legends 9, p. 103.
  7. "Chat with Greg Farshtey", post 10897565. LEGO Message Boards. (archived on
  8. "Chat with Greg Farshtey", post 10805479. LEGO Message Boards. (archived on
  9. 9.0 9.1 "Official Greg Dialogue", post 8267. BZPower Forums. (archived on