GMforPowergamers
Legend
There is one simple of using "powerful" NPCs to save the PC's life without frustrating them : letting the player's call for them !
If Gandalf/Dumbledore/Elminster/etc. comes to the rescue when Frodo/Harry call on its relationship to the former (the ending of the fifth Harry Potter book is a good example), the players don't feel useless anymore.
yes, and sometimes it works well (especialy in books/movies/fiction where the writer controls it all)...sometimes it just pisses the DM off though to...
Again my example of (A real game I ran) I had 6th/7th level PCs who went into a dungeon following an evil wizard who had just wreck a bunch of stuff...through the cource of the dungeon (and a nother level or 2) the PCs found out he was a red wizard...He had been part of a group sent out in advance of there invasion...They were going to martch out with thousands of undead and constructs by the end of the year and begin to start a whole war...My intent was for the PCs to try to stop this...BUT there intent was to make the following rounds (First symbul...she I guess is the ruler/archmage that is always fighting them...then elminster...then the lords of waterdeep) when they got to symbol I had her tell them she didn't care...opps I guess that is way out of character...this lead to the argument of I don't want chosen of mystra in my games solving the plot...so I had elmister on a nother plane...so they pulled out 5 or 6 more names I never even herd of before...that was what ended my game...