General Information
Species Necrosian
Home World Necros
Body Humanoid Plant
Powers and Abilities
Abilities Weed Manipulation
Ice Generation
Nitrogen Projection
Herbicide Gas
Seed Generation
Slippery Mud
Body Alteration
Flight (via propulsion)
Enhanced Agility
Enhanced Flexibility
Voice Actor Dee Bradley Baker
First Appearance Lights Out

Swampfrostis a Necrosian from Necros and the Dimension -1 equivalent of Swampfire in Ben 10: Omnitrix Unlimited.


Swampfrost resembles his Dimension 1 equivalent, but with some differences. He has a very frail body build and his skin is aquamarine. He possesses two appendages protruding from his back, allowing him to support his weak body. Ice chunks are embedded in various parts of his body. The areas around his ribs have been shredded, causing a blue liquid to leak from the wounds. His right shoulder is missing and the left side of his face is rotten, possibly because Bain's face is scarred in the same area.

Powers and Abilities


  • Necrosian Physiology: Swampfrost, being a Necrosian, possesses all the powers, abilities and weaknesses of that species.
    • Weed Manipulation: Swampfrost possesses the ability to create/generate, shape and manipulate weeds in various shapes and forms. Usually, he can only manipulate the plants he generates, unless weeds are located in the area.
    • Ice Generation: Swampfrost possesses the ability to emit cold mists from his hands and mouth, encasing the person or object completely in ice.
    • Nitrogen Projection: Swampfrost possesses the ability to release nitrogen gas, which can be used akin to a fire extinguisher, putting out fires.
    • Herbicide Gas: Swampfrost possesses the ability to produce a herbicide gas, which will cause any plant in the vicinity to wither and die. While the weeds created by him are immune to this, weeds found in the environment do not share the same immunity.
    • Seed Generation: Swampfrost possesses the ability to produce seeds everywhere on his body, then use them to rapidly grow weeds for a multitude of purposes, commonly to ensnare opponents.
    • Slippery Mud: Swampfrost possesses the ability to produce a slippery mud, that will cause anyone who walks over it to slip and fall.
    • Regeneration: Swampfrost possesses the ability to regenerate parts or the entirety of his body. However, in order to this, he must absorb large amounts of plant matter to integrate it with himself.
    • Body Alteration: Swampfrost possesses the ability to alter his body in various shapes and forms. The most common manifestation of this ability are the two tendrils producing from his back, allowing him to walk properly.
    • Flight: Swampfrost possesses the ability to fly via propulsion for short distances by focusing his cold mists against the ground and launching himself like a rocket.
    • Enhanced Agility: Swampfrost possesses agility superior to that of an Ooman's, especially with the assistance of his back tendrils.
    • Enhanced Flexibility: Swampfrost possesses flexibility superior to that of an Ooman's, allowing him to contort his body in various shapes and forms.


  • Fire: Swampfrost is extremely vulnerable to fire, as it can enfulf and scorch his plant body. However, his ice and nitrogen powers can easily counter this.
  • Frail Body: Swampfrost's body is very weak, possessing below average strength and durability. As such, strong attacks can incapacitate him. Furthermore, he cannot support his own weight, meaning that if he were somehow prevented from generating appendages, he would be left stranded.


Ben 10: Omnitrix Unlimited

  • Swampfrost first appeared in Lights Out.
    • Swampfrost encased Kevin in ice.


Ben 10: Omnitrix Unlimited

Ben 10: Omnitrix Unlimited
Ultra3000 (Creator) - UltiVerse (Co-Writer)
Ben Tennyson - Gwen Tennyson - Kevin Levin - Rook Blonko
Dimension 1
Albedo - Eon - Faction (Doctor Psychobos - Khyber - Khyber's Anubian Baskurr) - Maltruence - Overlord
Sapient Transformations
Dimension -1
Dimension 1
Alien X - Alien XIII - AmpFibian - Arctiguana - Armodrillo - AssassinTen - Astrodactyl - Atomix - Ball Weevil - Big Chill - Blitzwolfer - Bloxx - Brainstorm - Bullfrag - Buzzshock - Cannonbolt - ChamAlien - Chromastone - Clockwork - Cloud 10 - Crashhopper - Decagon Vreedle - Diamondhead - Ditto - Eatle - Echo Echo - Eye Guy - Façade - Fasttrack - Feedback - Four Arms - Frankenstrike - Ghostfreak - Goop - Gravattack - Grey Matter - Gutrot - Heatblast - Humungousaur - Jetray - Jury Rigg - Kickin Hawk - Lodestar - Metashift - Mole-Stache - Nanomech - NRG - Pesky Dust - Persuader - Portaler - Pursuant - Quantum - Rath - •REC - Ringmaster - Ripjaws - Rocks - Rookie - ɿoɿɿiM - Sandbox - Scorch - Shellhead - Shocksquatch - Shroud - Skidmarx - Slick Stick - Snakepit - Snare-oh - Spidermonkey - Spitter - Squidstrictor - Stinkfly - Swampfire - Terraspin - The Most Useless Alien Of All Time - The Worst - Toepick - Under the Skin - Upchuck - Upgrade - Vaccine - Walkatrout - Water Hazard - Way Big - Whampire - Wildmutt - Wildvine - Wither - XLR8 - Yin Yang
Ultimate Arctiguana - Ultimate Big Chill - Ultimate Cannonbolt - Ultimate Diamondhead - Ultimate Eatle - Ultimate Echo Echo - Ultimate Goop - Ultimate Gravattack - Ultimate Heatblast - Ultimate Humungousaur - Ultimate Rath - Ultimate Spidermonkey - Ultimate Swampfire - Ultimate Water Hazard - Ultimate Way Big - Ultimate Wildmutt
Dimension 7
Bro Chill - Hawk Bro - Mixtape Bro
Dimension 12
Dimension 23
Alien 13 - Barnacle Man - Brainicrab - Clockwork - Frog Meister - Moth Man - Nuke-In-A-Box - Pile-o'-Goo - Plantfire - Speedraptor
Super Awesome Plantfire
Dimension 67
Alien ΙΓ - Diamondhead
Dimension 99
Blaze - Bloodstrike - Chamolizard - Clockwork - Fastah - Living Amplifier - Rage - Spider-Mankey - Stinkplant
Superior Living Amplifier
Dimension 131
Dimension 616
Dimension 999
Scream - Shredd - Slasher - Sludge
Dimension 2030
Diamond Arms (Diamondhead - Four Arms) - Ghostgrade (Ghostfreak - Upgrade) - Snarevine (Snare-oh - Wildvine) - XLR-Wolf (XLR8 - Blitzwolfer)
Dimension 3000
Chemix - Crystal Rock - Crystalshard - Shriek
Non-Sapient Transformations
Dimension 1
Apex - Bloodmarsh - Buglizard - Bulletshark - Bypass - Crabdozer - Dead End - Demonisher - Disbatch - Duplicat - Electriskull - Exhairvator - Feralscreech - Highlight - Hypnotick - Mucilator - Mycetopathia - Nightscare - Omnivoracious - Primental - Sheargas - Slamworm - Smoother - Soulpiercer - Stickup - Tearaway - Terroranchula - Toxisludge - Tyrannopede - Upsurge - Vicetopus
Ultimate Hypnotick - Ultimate Panuncian
Season 1 Episodes
An Unexpected Upgrade - Welcome To College, Rook - It's...Echo Echo Time! - Time To Go Useless - Anger Management - You Are Begging For Trouble - The Negative Effect - A Day in the Life of A Hero - Highbreed Invaded: Part 1 - Highbreed Invaded: Part 2
Season 2 Episodes
99 For A Change - Ben Quest - Ben 10: Across the 23rd Dimension - F.A.I.L. - Lights Out - Catfight...Again?! - Mind Over Matter - I Hate Time Travel - Forever Lost - No Hope - The End of Time
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