|Powers and Abilities|
|Abilities||Energy blasts, flight, electrical blasts, intangibility|
He has visible ribs, an Echo-Echo-like head, with a single green eye. He has lightning bolt shaped arms and small legs. He has a black cloth on his chest with the Matrix. He has appendages sticking out of his back that enable him to fly.
- Electrical Bolts
- Energy Beams
- Super Strength
Because his ribs are exposed, if he goes intangible too late after an attack, the attack can shatter his ribs.
- In The Training Session of Noah Segurason, Noah used Doomer for the first time to train.
- In The Second Attack, Doomer was used to fight Cell.
- In Energy Cores, Noah used Doomer to obtain the third energy core.
- In Prepare for Your Doomer, Noah was stuck as Doomer.
- In Invaders on Energia, Noah used Doomer to fight some DNAliens. Albedo also regained him.
- In Of Necrofriggians and Men, Noah used Doomer to overload a Galvanic Bomb.
- In Noah-Brian: Dimensional Chaos, he was used to fight Brian as Chromastone.
- In Captured, Noah used him to try to phase through a cell, but failed.
- In Live Long or Omni-Hard, Ditto and Eye Guy recruited Doomer for Omni-Hard.
- In Noelle 10, Noah's female counterpart, Noelle, used Doomer.
- In Security Breach, Noah used Doomer to fight Albedo.
- In Blood Sport, Noah used Doomer to get past the second match.
- In The End Approacheth, Part 4, Albedo used Doomer to fight Vilgax Norris.
- In Noah 10-Zero Hero: Aliens Unite, Both Noah and Zero used Doomer.
- In Noah 10 Reborn, Part 1, Noah used Doomer to try to fight Retaliator.
- In Nabbed, Noah absorbed a forcefield.
- The Training Session of Noah Segurason
- The Second Attack
- Energy Cores
Noah 10: Matrix Unleashed
- Prepare for Your Doomer
- Invaders on Energia
- Of Necrofriggians and Men
- Noah-Brian: Dimensional Chaos
- Noelle 10
- Security Breach
- Blood Sport
- The End Approacheth, Part 4
- Noah 10-Zero Hero: Aliens Unite
Noah 10: Super Matrix
- He is my most popular self-created alien.
- Doomer was originally going to be called Dark Blob, but it was changed.
- Doomer was created in the Ben 10: Hero Matrix on CN's site when I was bored.
- Doomer is a part of Omni-Hard in AncientMinisterz's series Omni-World..