My DM allows flaws, he likes the additional flavor and ability to f*ck with the players.
I decided to play a warforged fighter, but I redid some feats after looking into prestige classes and Dragon Magazine.
The Troll-Blooded Feat, from Dragon Magazine #319, grants Regeneration 1. The catch is, it requires the Toughness feat, but must also be taken at level 1. Because of this, it was meant to be a human / that halfling-variant only feat. With flaws, I was able to take it, so I did. A typical downside to taking T-B on a fighter is it Fatigues you in sunlight... but Warforged are immune to Fatigue.
Now, Wizards of the Coast already thought of Regenerating Warforged, so they explicitly put in the text of the Improved Resiliency feat a clause that says you're not allowed to benefit from Fast Healing or Regeneration from ANY MEANS.... however.....
Warforged Juggernaut (PrC) level 2 Bonus does NOT include this clause.
So by level 7, I have made a character with a lengthy list of immunities, one of which being Non-Fire, Non-Acid damage. Best way to overcome those anyone? Looking mainly for items, or maybe class abilities with less than 4 or 5 levels sunk to get it, that way my DM can't remove the item from me and send us against a Red or Green dragon.
I'm currently working on making him as unkillable as possible. I've taken a feat that makes me not automatically fail Fort saves on a Nat 1, and I'm trying to fill in the list of special immunities NOT covered by Warforged racials that come up frequently in Rocket-Tag... as I suspect our DM will be turning us against each other rather soon, and the pyromaniac Red Wizard troubles me.
Thoughts? Suggestions? I thought it was a rather clever work-around. My DM doesn't seem to want to let me see this through without someone from the community agreeing... as he says a "Troll-Blooded Warforged" seems "ridiculous" [despite the fact that we have a Werebear Beguiler].... and yet I met all the requirements and the feat does not explicitly state it is for Humans only.