- "Abaddon with its very strange tail design, look out for that one."
- — Philippa Forrester, introducing Abaddon
The robot was named after the mythological being of the same name, Abaddon being the 'Angel from the Bottomless Pit' and also known as the ruler of Hell before Satan.
It was protected by 4mm thick aluminium and armed with upwardly rotating blades (actually taken from an old garden Rotavator) on the front and a spiked tail with hardened-steel chisels at the rear which pivoted relative to the main robot, using a large bowling ball as a wheel. However, this ball had to be removed in its only battle due to it causing the robot to be overweight, and was replaced with a castor.
- "No nice boy this. Sharp and chisel prongs and wicked rotor blades at the front. 4mm thick aluminum off a scamp protection though. It took three months to build, this one."
- — Jonathan Pearce
Abaddon competed in Heat B of the Third Wars and was placed up against previous heat finalists Technophobic in the first round. At the beginning of the battle, both robots attacked each other head on, Technophobic trying to lift Abaddon using its spike, however it was Abaddon who got in and underneath Technophobic with its blades. After another attack, Technophobic became impaled on the blades of Abaddon until Abaddon released it. Technophobic then charged at the robot and managed to lift Abaddon with its spike, preventing the blades from being effective. After a few more attacks by Technophobic with the lifting spike, Technophobic managed to knock the castor off the rear of Abaddon, damaging their control as Technophobic pushed it onto the Flame Pit.
With the tail trapped on the mesh of the flame pit, Shunt and Matilda helped to free Abaddon, who was immediately attacked by Technophobic and carried around the arena. With the robots impaled together, Matilda, Sergeant Bash and Sir Killalot attempted to separate them, eventually succeeding, but the combined efforts of Technophobic and the house robots caused Abaddon to lose a drive chain, leaving it without drive on one side. The battle went to the judges, who went in favour of Technophobic, eliminating Abaddon from the competition.
|ABADDON - RESULTS|
|The Third Wars - UK Championship|
Heat, Round 1
|Heat B, Round 1||vs. Technophobic||Lost|
- Wins: 0
- Losses: 1
|Series||Abaddon Series Record|
|The First Wars||Did not enter|
|The Second Wars||Did not enter|
|The Third Wars||Heat, Round 1|
|The Fourth Wars||Did not enter|
|The Fifth Wars||Did not enter|
|The Sixth Wars||Did not enter|
|The Seventh Wars||Did not enter|
|Series 8||Did not enter|
|Series 9||Did not enter|
|Series 10||Did not enter|
- At 2.43 metres long, Abaddon is the second longest robot in the history of Robot Wars, after Eleven.
- Abaddon's official image shown on its team caption does not feature its entire tail.