Dementia (character)

Dementia is an Ethereal living in CHS. She was born in Manehattan before the Dimensional War under the name "Twinkle Bright," and was orphaned as a child during an alien Terror Attack on the city during the Dimensional War.

Born a Unicorn and left an orphan by alien attack, Twinkle Bright was influenced to join ENDURE by it's original leaders, who used the filly as a test subject for their Psionic experiments that led to the creation of the Psimares. After another prisoner, a filly codenamed Amnesia, broke out of her cell and freed her "sisters" including Twinkle Bright. This is when ENDURE dropped off of XCOM's radar as they seemingly vanished, their base in ruins and their personnel slaughtered. Amnesia led her sisters and the Ponies that followed through the Mirror and into CHS, where they grew up and prepared themselves. Twinkle Bright had been twisted through experimentation and now thought only of herself and her sisters, where as all other life could rot.

Eventually Twinkle Bright stopped using her original name and started going by the name "Dementia," one of the sisters of Amnesia, the shadowy ruler of CHS. Her powers grew each day but at the same time her body began to die, eventually leading to her becoming the first successful pairing for the "Avatar Project," ADVENT's endgame. After gaining her new humanoid body her original body perished and disappeared into Psionic energy. She was later engaged by Resistance forces after an experiment on a Codex using the Skulljack resulted in a major security breach inside the Avenger. The Avatar was able to use its immense Psionic powers to easily defeat many XCOM forces, though the being was restrained by the Templar Prelates and combatted primarily by Brother Ghost, who himself was acting as a Conduit for the True Mother. The two Mothers engaged Psionically as the physical bodies did so with weapons drawn, leading to Brother Ghost winning his fight and the True Mother winning her own against Dementia. Dementia herself died with a glorious Psionic pulse, her final words being "We had such hope for you..." before vanishing, presumably taken to the Psionic Plane to atone for her crimes against Pavonis and the Gift.

The death of Dementia was marked as a great victory for the Resistance, but a great blow to ADVENT and the Mothers. As such they accelerated their plans for the Avatar Project, though they still regarded Dementia's sudden strike on XCOM as foolish and brash.

Despite her name, Dementia did not have dementia. This trend matches most Psimares, for example Amnesia does not have Amnesia and Aphrodisia is not sexually-driven.