Psyfire (B10LT)

History:
Starting off as Ben's eleventh Alien Psyfire was used for the first time to fight Kevin Leven, it was revealed that the species was similar to the Amazons of legend, that being only female in nature.

Ben notably hates being Psyfire because almost every time he turns into her something bad happens.

Gwen dislikes Psyfire incredibly which was revealed when Psyfire was confused for the missing Anamaran Princess Amara (The DNA source of Psyfire gifted to Azmuth by her mother.)

Amara was the most powerful Anamaran ever having abilities most did not, after meeting Amara and the homeworld Ben found a new respect for this transformation.

Design:
Originally Psyfire did not have a nose or eyebrows as those developed in the race's teenage years.

She gained them when Ben got her and his other aliens back during his own teenage years.

Behind The Scenes:
The question was raised among the writers before development what would happen if the Omnitrix scanned aliens that were of only of a different gender to the user, in this we decided it would be fun to make our own major alien like UAF did with Swampfire, OV did with Bloxx, and the Reboot did with Shock Rock, and to stand out of the crowd we chose to have the Alien be different from all the rest by having them be female.