Age: She hasnt bothered counting and no one else recalls
Height: Usually short in comparison to a human...But subject to change
Weight: Subject to change
eyes: Almost always silver but subject to change
Hair: Usually long and silver but subject to change
Gender: Technically genderless but usually appears as female out of preferance
Clothes: Usually black but subject to change
Temet's phyiscal body is a manifestation of her will. In other words it changes and appears or disapears when she wishes. She isnt interested in good or evil and often does things simply to see what happens. If a human examined her mind they would probably conclude she had a number of mental disorders since her mind has little ressemblance to a mortals. She spends her time experimenting and collecting things that interest her. Over the years she has accumulated a massive number of items which she has hidden. She uses a portal which she can cause to connect any 2 points to access the things shes collected though the portal can also be used to connect other places.
(Ill update this later. I dont feel like taking the time to type out her entire history right now.)