Early on, those acid spells are almost nonexistant. You're right though, it's great once you start seeing more gear with discard/acid spells. (Level 12+). But the first 10 levels are basically a "keep repeating until you luck out on rolls". Which, in tabletop is great, but in a video game? I dunno if the same applicable mechanics make sense. And yeah, I would recommend the same strategy to anyone else dealing with trogs. (I remember having a heck of a time with them but I managed.) But I stand by my suggestion that armor shouldn't block magic. Otherwise, what's the point of shimmering aura cards and the countless others that play off that? But overall you are absolutely correct. But my opinion stands.