drnuncheon
Explorer
bret said:
Blur, 2nd level Arcane spell. Provides concealment, thus preventing Sneak Attack.
True Strike, 1st level arcane spell. Eliminates concealment, thus allowing sneak attack. (And you have always had to resort to magic to defeat magic in D&D so saying "but that's using magic" is not an exceptionally good counterargument.)
Wand or scroll of dispel magic (used with rogue's UMD skill).
There's just as many ways to shut this down as there are to shut sneak attack down. And, of course, there's no guaranteethat the target will have Blur in his repertoire, let alone be an arcane spellcaster.
bret said:Fortification as an Armor Enchantment prevents criticals and sneak attack damage. For a high level character, it becomes very useful.
...and very expensive, if you want it to work every time. If not...oh well, this strike didn't do 12d6 extra damage (plus wounding plus lingering plus hamstring plus...), the next one will. And what are you giving up for that heavy fortification? +4 AC (much easier to hit you now) and/or other armor special abilities...
In short, there will be some enemies immune to a rogue's sneak attack - but then again, there are some enemies immune to any class' special ability, and the ones that concentrate on beating rogues will be vulnerable in other ways. Which is why you bring along your three buddies.
J