Becoming Immune to Conventional Damage (3.5)

Warning this post will show stupid levels of optimization.
So because I'd like to be able to link to this build instead of just mentioning it. So with out further ado:
How to be Immune to Damage:
This build will require you to take 2 flaws and use dragon magazine material.
Warforged
4 LA: Half-Black Dragon
3 LA: Firesouled Template
5 Fighter (this can be anything really)
2 Warforged Juggernaut

Feats:
Level 1: Toughness (Could be fighter 1 but it doesn't matter)
Flaw: Adamantite Body
Flaw: Troll Blooded (Dragon Magazine #319)
Fighter 1: Improved Bullrush
Fighter 2: Power Attack
*That is all that is required*

Now the explanation:
Troll Blooded gives Regeneration 1 as a troll, requires toughness and can only be take during character creation. For those of you who don't understand the behind the scenes of a troll; A troll takes all damage that isn't fire or acid as non-lethal damage and regenerates a number of it every round. Firesouled Template gives immunity to fire. Half-Black Dragon gives immunity to Acid. This no means that all damage dealt to you is non-lethal. Warforged Juggernaut 2 deals with that nicely.

Now this isn't to say you can't be killed. There are plenty of ways to get around regeneration and immunities but being immune to them by level 14 puts you well ahead of the curve.