a fiendish despot.
a mephistophelian glint in his eye.
devilish schemes.
diabolical sorcerers under the influence of devils.
fires lit up a diabolic scene.
hellish torture.
infernal instruments of war.
satanic cruelty.
something demonic in him--something that could be cruel.
the cold calculation and diabolic art of some statesmen.
the diabolical expression on his face.
unholy grimaces.