Sierra is a main character in Omnitrix Conquest. Her partner is an Eevee.


Sierra is 15 and is the only girl in the group. She has long brown hair with bright pink streaks that gets everyones attention. She is considered quite attractive throughout the village of Aurora and is often underestimated due to her appearance. Sierra wears a black skirt with a white long sleeved shirt. The shirt has pink and green patterns over it. Atop her shirt she wears a metalic blue sash that opens up into a full body suit of armor and can hold weapons.


Sierra is one of the 8 wielders of the Omnitrix. Along with that, she is able to communicate with Pokemon and capture them. She is also extremely intelligent, second only to Ship. To add to her natural abilities, she is extremely strong and fit and extremely agile.


  1. Chromastone
  2. Diamondhead
  3. Echo Echo
  4. Heatblast
  5. Articguana
  6. Ripjaws
  7. Ghostfreak
  8. Fasttrack
  9. Wildvine
  10. Swampfire


  • Eevee (Pokemon)
  • Torchic
  • Wurmple
  • Celebi

As a child, Sierra got lost on a hike up a mountain. She lay in a crevice, sobbing loudly, when an Eevee found her. The Eevee tugged on her shoulder and urged Sierra to follow it. Eevee managed to return Sierra safely to her family. As she was about to return to the wild, Sierra asked for it to join her. From then on the two were best friends.

When Sierra's family took her to a local diner, she heard a Pokemon crying. She quickly ran to found the source of the sound and entered the kitchen. There, she found a Torchic, whimpering and hiding in a corner, trying to get away from the chefs. Sierra asked what was going on and the chef explained that they had been using Torchic to heat up the stoves and were now going to cook it. Sierra tried to object but the chef threatened her, so Eevee defeated him and they saved Torchic.

In the fifth episode, A Bug's Life, the team capture one bug Pokemon each. Sierra captures a Wurmple.

In season two, the team stumble upon a nest full of eggs. They each take an egg and Sierra's hatches into a Celebi.



  1. Helping Hand
  2. Tackle
  3. Quick Attack
  4. Bite


  1. Ember
  2. Peck
  3. Scratch
  4. Headbutt
  5. Tackle


  1. Poison Sting
  2. Poison Tail
  3. Tackle
  4. Leech Life
  5. String Shot


  1. Teleport
  2. Heal
Omnitrix Conquest
Main Characters
ET | Brian | Nar | Dan | Ship | Charbel | Sierra | Cyber
Water | Solo
Season 1
1. It's An Omnitrix Conquest, Part 1 | 2. It's An Omnitrix Conquest, Part 2 | 3. Stepping Up | 5. A Bug's Life