She's called her Psyduck ugly
She's called her Psyduck stupid
She yells at everyone
She hurt Caterpie's feelings
She hurts every bug Pokemon's feelings
She goes on how beautiful she is
She complains about sleeping outside
She complains about Psyduck don't being able to swim, when she never even teaches it.
i wouldnt say hes the biggest but naraku from inuyasha. heres why:
-he never apears as himself.
-he uses a demon puppet to fight for him
-he creates new demons and orders them to do stuff when they dont want to (kagura)
-he always makes deals with people but there is always a catch (sesshomaru, tsubaki)
-right when u think hes dead he comes back!
-there are lots more too
HAZAMA/YUUKI TERUMI! From Blazblue (Known as GOD of trolls)
His crimes include:
-Making a little boy kill his brother.
-Burning down a church,killing children and nuns.
-Is responsible for the death of half Earth's population.
-Making a girl go blind, than making fun of her.
-Cutting off a child's arm, than kidnapping his sister.
-Making little girls cry.
-Punching a catgirl in the face DX
-Made EVERY character of the series cry, at least once.
-Always kicks people when they are down.
-Threw a child into a pit, for no appearant reason.
-Made fun of a girl for being in love.
-Almost lead an innocent girl to her death.
-Turned a little boy into a incestuous pychopath with a brother complex.
There's a ton more, but if I typed ALL his crimes, I'd have sore fingers.
And despite being the biggest ass in anime history, has one of the largest fandoms of the blazblue series. (WTF)