Despite knowing it's supposed to be a rapidash (and I can easily tell it is) the first thought that comes to mind is "Captain Fire-underpants" xD;

But I have no underpants. I think of a wolf

Fire!!

Steam Gunner from .Hack//GU

But you do have that sash which is underpants enough for me xD

A Christmas Elf knight. ono

a strange cat thing

a sneaky creature of destruction

Black mage.

a blueberry muffin

The white hair.

a warrior who is part scorpion and demon

Demonic Angel

a powerful demon

There's one class in an MMORPG that you look like....can't place which.