what is the jedi with blue skin and weird pony tails name?

Aayla Secura. I believe she was originally from Ryloth.

There are alot but i think youre talking about aayla secura shes in episodes two and three and dies in three on felucia when order 66 is issued to the clones

her name is aayla secura she is a twi'lek alien just like bib fortuna shes from the planet of ryloth