advowson: The Dark Lord does not possess Inferno. He does possess a variant of Apocalypse, which can target you any time he has line of sight, even if he is off screen. The Dark Lord is IRR for Magic/Fire/Lightning. Flame Wave's damage is likely too low for you to kill him with it. A high level Fireball works well. Please describe your character:
- How much mana do you have?
- Do you have Mana Shield up?
- What level is your Fireball?
- How many Full Mana Potions do you have, and can you afford to get more? I would want to have at least a full belt of FMPs, but more is almost always better. The game will end when you defeat The Dark Lord, so there is no value to hoarding resources for later.
- Are you facing The Dark Lord alone, or did you also wake his minions? Fighting him alone makes this much easier.
If possible, provide a screenshot of the automap, so we can see which variant of dungeon level 16 you received. Some are easier to handle than others.
I did manage to beat him somehow. I don't remember how. What does IRR stand for?