Ok, here u are... a thread with totally original names to try in a range of not all evil names.
Evil
Dark Excalibur (excalibur: a knight of a kings)
Witches Servant
Broomstick Karla
Bones
Carved
Snicker
Lucky
Nice
Barbie Q
Marshmallow
Lillypad
Furry Dark (dark-fur)
Bon-Bon= Bon-Boo
Harvest
Black Beauty
Mystic
Gem Stone
Coal Eyes
Amethyst
Ruby
Sapphire
Onyx
Glitter
Black Magic
Twisters
More ideas coming before the date arrives! Don't worry you will find a name soon!