Tsyr said:He tends to actualy have really bad tactics, so he tends to try to "compensate" by using knowledge he really shouldn't.
I agree with this. However, from what was indicated ealier ("...an entire dungeon of traps 1 DC to high for our theif to get, and NPCs who had spells prepared and in place to counter the *exact* spell list of our wizard...") isn't a case of the DM ensuring that adventures and encounters are challenging, it's a case of the DM making unbalanced encounters (which he can do with or without the sheets).Umbran said:Personally, I don't think there's any knowledge that a good intentioned, thoughtful GM shouldn't use. If his intent is to give you excitement, and tell a good story, then there's no problem with him using any piece of information. The DM can only "cheat" if you have an adversarial relationship with him.