I heard someone started a thread here about me!
[Cardcaptor] Sakura using The Power Card.
I would guess that by the end of the second movie, this character's powers are ready for a match with just about anyone in the anime universe. She's got The Power, The Fight, The Erase, The Sword (which can cut anything), The Dark, The Nothing (whose power to cast black holes, I assume, is maintained in the card's new form of The Hope), not to mention the five elements Wind, Fire, Water, Earth, and Wood. Keep in mind, too, that she's adept at using more than one of these at the same time: Fly + Sword, Wind + Water, Illusion + Maze, etc.
Heh. Don't underestimate her, Goku.