Garus:
Wait your thinking like guard from final fantasy. How about this when a fighter takes a full defense he halves physical damage after applying his DR. The damage is rounded up. (Or rounded down with a minimum of 1 damage)
Improved Guard causes any damage to be halved after reducing it by any form of resistance or damage reduction.
Protect II, the spell, already does this. Moreover, that's much too incredibly powerful for an (Ex) ability that can be used an unlimited times per day. edit- If you'd like me to elaborate on why I believe that, or anything else, let me know.
Garus:
Rather then halving you could just add the shields AC bonus as a bonus to DR/- However that might be to much with a tower shield. Improved guard makes it so you gain Shield bonus to Ac to Dr and all resistances (this creates resistances if you don't already have them)
A shield shouldn't up your resistances to elemental attacks. DR, maybe, but there are already a lot of sources of DR for fighters to play around with.
A level 10 Fighter in adamantine Full plate +3 already has DR 9/-. That's a pretty intense investment, yes, but it's entirely possible. There's a feat in PHB II (that I think requires BAB +12?) that would give you two more, for a final DR 13/- at level 12 assuming you had +5 armor. If you took an exotic armor proficiency in something from Races of Stone you could get it to DR 14/-. Red mages can also buff that up even further with
Phalanxga.
If your DM allows ____ ward crystals from MiC, then that's 1, 3, or 5 more respectively, which
really makes it silly. Roll With It is another feat but it requires Toughness and a CON score of 20. I don't allow it because it's from Savage Species but other DMs might.
I think I did the maths way back in the day, and if you did everything possible available to a party of level 20 humans with the source books I normally allow DR 26/- was possible. You don't even need higher than level 12 for the fighter but more caster levels for the red mage levels 13-20 helps a ton.
This message was last edited by the GM at 16:24, Thu 10 May 2012.