Knowledge above all other things, but fun above even that. Fluid as water and just as willing to wear you down. Punnery so bad she makes Albus Dumbledore cry. Not evil, per se, just very sardonic. Fashion sense that alternates between iconic and offensive.
Wand: Vine and phoenix feather, 12 and 3/4ths inches, whippy.
Patronus: Cornish pixie.