I could have done Zot, but I had never done the hells before. They sucked but I finished 3 of them. The fourth had too many shadow fiends, which did not mesh well with my constant necromutation. Then I had never seen Pan before, it's really not bad. Pan lords can be a bit tricky but are weaker than the bosses of Hell IMO. Then I had never seen a Ziggurat before so had to try that. I was chewing through it no problem dropping everything with Tornado in 1 or 2 casts, then got a bit cocky and tried to plow through a herd of Mummies. Was doing fine, then 2 death curses hit my strength and that was it. Lying on the floor twitching while a giant pile of stuff tried to beat on me.