Ben 10 Fan Fiction Wiki
Ben 10 Fan Fiction Wiki

Knightmare is the Omnitrix's DNA sample of an Arthuran from the planet Arthure. He is a free use alien.


Knightmare has a golden-orange body with brown stripes. He wears a typical Medieval armor, namely a silver chestplate with the Omnitrix Symbol on it, silver boots, and a metal helmet with an aqua green glass covering the eyes. On his back, he wears two hidden slots for his swords. The red patch on his armor is made of cloth and purely aesthetic.


Knightmare speaks in a heavy Swiss accent. He pronounces the silent K in his name as a voiceless velar fricative (kh).

Powers and Abilities

Knightmare is a very skilled combatant. His combat styles include spinning both swords to create a shield, slicing victims in diagonal, or just attacking traditionally. His swords are made up of steel and silver allows, which makes them sharper and harder to break.

Kinghtmare demonstrates good physical stats, being very strong and durable. He also shows to be agile and surprisingly quick, despite his armor, which boosts the resistance even more.

Knightmare can spin his sword fast enough to put out a fire. He also has dexterity high enough to hold his swords while spinning.


Knightmare's swords are not indestructible, and can be broken. They will only be fixed after reverting.

Knightmare's armor has a durability limit. It also reduces Knightmare's speed and agility.


If Knightmare is going to appear in your series, write it down here.


If Knightmare is going to appear in your series, write it down here.


Knightmare is a popular word play uniting the words "knight" and "nightmare".


  • Knightmare's armor is not biological. After opening it, it will reveal the inner body.
  • One of the pre-production names for Knightmare was "Slicer". It was discarded due to not fitting well into the powers of the transformation.
Omnitrix Aliens
Air WhirlAlien ZAttactusBind LimbBoost RiderCopperman CrabclawCryptowaveDeath TrapDragonforceEyEgleGray TrunkHammershakeHeart FreezeIl Leg AlKnightmareKrakkInMeteorockNyctomancerRed BullSeagrossStrong ShellTear TreeTowerstoneWater BearZoomer
Nemetrix Predators/Non-Sapient
Alien Species
ArthrowheelArthuranAviaquilanCancerpesCryocardianDracontachianE-HumanEncephalopodFloraForteanHaatheeHydrideMeenaarNebulopedeNocturnal AerotatorPietorShataranjanSpicaryophyllTauroformTensionsapienThoronianVedmedanVoid Spider