Wand of monster summoning until there’s no more space in the room was the cheese I recall using.

Yeah, boss fights in general kinda stink in that system, but you’re there for the story anyway. Needed more effort to show a sense of progress and maybe some UI elements to add drama, maybe even the cliche second health bar.

Yeah. Dragonspear doesn’t hold a candle to candlekeep. Linear and lacking character.