Mephistophelean

The politician's mephistophelean tactics caused public outrage.

The antagonist's mephistophelean demeanor in the novel made the readers hate him.

The mephistophelean aura of the abandoned factory made it a popular spot for ghost hunters.

His mephistophelean schemes ruined many lives.

The mephistophelean look in his eyes gave away his true intentions.

The mephistophelean presence of the villain in the game made it challenging for the players.

Her mephistophelean lies caused her to lose the trust of her friends.

The mephistophelean figure in the painting had a hypnotic quality.