give me an Anime girl who has powerful powers

Lucy from Elfen Lied.
She's Mehr powerful in the manga.

Watched the first episode of Sailor Moon Crystal today, so I'll have to post Sailor Moon. She's got a powerful "cry" in this episode (plus a boomerang).

Madoka Kaname. Especially at the end of the series.

Alice Baskerville.
Has the power of The B rabbit. (well technically Oz does but..)

Kurumi from datum A Live.

Neko Kuroha from Brynhildr in the Darkness

Mami Tomoe

Lina inverse from the slayers

erza! :D

Kaguya Otsuki (Naruto Shippuden)

She is the most powerful female character of all...........
she is like a god........he he h

she can use any powerful powers...she is god........!!!!