Aboleth 22
Adult/Ancient Chromatic (Evil) Dragon 23
Adult/Ancient Metallic (Good) Dragon 6
Beholder 25
Death Tyrant 20
Demilich 15
Dracolich 23
Elder Brain 21
Kraken 26
Lich 22
Mummy Lord 21
Unicorn 1
Vampire 18
I simply refuse to believe that anyone would be silly enough to kill a Unicorn, so I'll leave it at 1