You're an experienced hero (name your race and class in D&D terms by all means). You have been tasked with defending the nation Waterdeep from the Valsharess (very powerful priestess of Lolth armed with a sturdy whip) and her army of drow and other evil creatures of the Underdark. You're doing well but the battle goes poorly. You try to dispatch the Valsharess herself to force a morale boost and deprive the enemy of its leader and most powerful priestess. But the archdevil moving in front of her tells you that it's easier said than done.

Ah, the foreseen foe who can supposedly stop me, the Valsharess identifies you. Mephistopheles, seize the fool!

With that, the archdevil advances towards you.