How I meant the story to go:
Tasha is an alter ego of the shadow that talked to Yelan.
She was an apprentice of Clow. She thought she should have received the cards and wanted revenge because Sakura got the cards. Trying to stay alive over the years she traveled and had to transmute her body into a half dragon like creature. In this form she speaks face to face and calls herself 'Dragon' mostly because she lost her original name in the change. Sakura with her bubbly personality changed Dragon/Tasha's mind and found she did not want the cards, because she gained more power than the cards.
Her power takes the form beads or marbles that glow or flies (she has other ways but this is what she prefers to use, she has a flare for the dramatic)
This character is a Mary Sue. I see that now.
If any one would like to take and write more or change it. Please tell me and have fun.
The end