General Information
Species Pyronite
Status Alive
Home World Pyros
Residence Pyros (formerly)
Undertown (currently)
Timeline Prime Timeline
Occupations Slave (escaped)
Asylum seeker
Abilities and Equipment
Abilities Pyrokinesis

Enhanced Strength
Enhanced Durability
Pyro Immunity
Cryo Immunity
Flight (via Propulsion)
Limited Terrakinesis
Enhanced Speed (via Propulsion)

Relatives Unnamed Mother
Friends Ben Tennyson
Rook Blonko
First Appearance Death of Ben 10
Chapter 2
Sella is a character in the Death of Ben 10. She first appeared in Chapter 2. She is a Pyronite from the planet Pyros.

Sella was the featured character of July 2017!


Sella is an adult female Pyronite. Her skin is dark red, albeit lighter than most other Pyronites, and lined with glowing yellow cracks. Her chest is slightly larger than Heatblast's, and her face is longer. Her forearms are thinner than most male Pyronites.


Despite being a fully developed adult Pyronite, Sella is very childish.

Powers and Abilities

Being a Pyronite, Sella shares the same powers and abilities as the rest of her species.

She also seems to be a skilled pilot, capable of flying across the galaxy to get to Earth.


Being a Pyronite, Sella shares the same weaknesses as the rest of her species.


Very little is currently known about Sella and her past, except that she used to be a slave for Apollo and eventually escaped. How she worked for Apollo is not known, however. She escaped using a small Pyronite fighter-class spaceship that she stole.

Death of Ben 10

In Chapter 2, Sella's stolen ship crashed in Yosemite park, California. The ship itself mostly disintegrated, burnt up in the atmosphere, but what survived helped protect Sella from impacting the ground. Due to Ben's Omnitrix's universal translation function being disabled, she gets into a fight with Chromastone before Ben realises she doesnt want to fight. She reveals that she came to Earth in search of Ben, to try and free her people.

In Chapter 6 Ben hands her over to Fistina and Liam to look after her due to the Plumber's inability to risk intervention in Pyronite affairs.

She currently resides in Undertown with Fistina.

Ben 10: Reboot Revolution

In Chapter 1, Sella managed to locate Ben Delta. She later fought and killed on of the Lenopan Degradations.


Death of Ben 10

Ben 10: Reboot Revolution


  • According to Sella, Pyronites need to eat fuel to survive, and minerals to grow.
    • However, Sella just eats "whatever tastes nice!” despite being unable to taste


Death of Ben 10
Aaronbill3 Ben 10: Reboot Revolution
Act 1

Prologue - Chapter 2 - Chapter 3 - Chapter 4 - Chapter 5 - Chapter 6

Act 2

Chapter 7 - Chapter 8 - Chapter 9 - Chapter 10

Act 3

Chapter 11 - Chapter 12 - Chapter 13 - Chapter 14 - Chapter 15
Chapter 16: Part 1 - Chapter 16: Part 2 - Chapter 17 - Epilogue

Introduced in Act 1

Alien X - Buzzshock - ChamAlien - Chromastone - Clockwork - Diamondhead - Way Big - XLR8

Introduced in Act 2

Atomix - Armodrillo - Big Chill - Fasttrack - Goop - Gravattack - Lodestar - NRG - Snare-oh - Swampfire

Introduced in Act 3

AmpFibian - Arctiguana - Barrier Reef - Bloxx - Brainstorm - Cannonbolt - Ditto - Echo Echo - Eye Guy - Feedback
Geothermite - Ghostfreak - Gutrot - Heatblast - Humungousaur - Jetray - Kickin Hawk - MindMatter - Sandbox
Spidermonkey - Stinkfly - Rath - Upchuck - Upgrade - Water Hazard - Wildvine

Ultimate Aliens

Ultimate Ben - Ultimate Big Chill - Ultimate Clockwork - Ultimate Echo Echo - Ultimate Fasttrack - Ultimate Gravattack
Ultimate Humungousaur - Ultimate Spidermonkey - Ultimate Upgrade

Fusion Aliens

Arctomix - Atomisaur - Big X - Camomech - Charmedge - Diamondactyl - Ectograde - Feedback Attack - Gecko Gecko
Gravattomix - Jawful - Snare-Chill - Tickin' Clock - XLRay - XLRtrack

Ben 10: Reboot Revolution
Death of Ben 10 Aaronbill3 Ben 10: Road Trip
Ten Over Ten Thousand
Chapter 1 - Chapter 2 - Chapter 3 - Chapter 4 - Chapter 5 - Chapter 6
Prime Dimension
Brainstorm - Chromastone - Clockwork - Gravattack - Grey Matter
ImmoBile - Lodestar - Spidermonkey - Spitter - Stinkfly - Upgrade

Delta Dimension
Cannonbolt - Clockwork - Diamondhead - Four Arms
Grey Matter - Heatblast - Overflow - Stinkfly - Upgrade - Wildvine - XLR8

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