Dungeon Magazine Adventure contains Zamatog the Pit Fiend who only appears at the end of adventure

[benedict139]

I’m looking for Dungeon Magazine Adventure that contains Zamatog the Pit Fiend who only appears at the end of adventure and doesn’t necessarily fight but only to take possession of something from the villain. I can remember neither the adventure nor issue. Can someone please help me? Since the pit fiend doesn’t necessarily fight I doubt the level of the adventur is above 10th Level. I’m pretty sure it’s Dungeons& Dragons 2nd edition and after the 1st 2 years from Issue 13 and on.

 

[Rabulias]

That would be "Master of Puppets" in Dungeon Magazine 14 (Nov/Dec 1988).