Innate magic and/or damaged power source (why he has a reserve of power that runs out) is an excellent way of explaining a psionic warforged.
Warforged Psion 5
First you need to choose a Discipline. Three that I like for warforged are: Egoist (mainly for the 4th lvl power Metamorphosis, if the campaign is going to last long enough and you can wait, you can pick it up with Expanded Knowledge at 9th lvl), Kineticist (good for blowing stuff up), and Shaper (key powers include Astral Construct, and Psionic Repair Damage).
6 Str 14 (still a "warrior", just not the mecha-Hulk)
2 Dex 10
9 Con 18
11 Int 17 (improved every chance)
0 Wis 6
0 Cha 6
Feats
1st: adamantine body, psionic weapon
2nd: improved damage reduction: ask your DM if you can take thick-skinned, if so go for it, you can also get IDR later
3rd: psi-crystal affinity: this is a huge part of your survivability... that a word? But you don't need it until you get Share Pain, a 2nd lvl power
4th: over channel: not as good as wild-surge, but it fits thematically to your over-surged power source idea. And there is a PrC in Complete-Psi that lets you acquire wild-surge.
5th: deep impact : this competes with greater psi-weapon, but you can only use one of them at a time and deep impact will almost always be better - expanded knowledge: energy missile
Powers (just listing those that I like, and why below)
1st level
Astral construct (1st): my warforged psion created temp-clones of himself with this power, ACs are some of the best melee-summons in the game.
Mind thrust: 1d10 damage per psi point, Will negates is the only thing preventing this power from being horribly broken.
Vigor: +5 temp HP to you and your Psi-crystal per Psi-point expended
2nd level
Share pain: use with your psi-crystal, it now takes 1/2 of your damage -Ablative Shielding, this greatly increases your ability to survive. (vigor + share pain, both with your psi-crystal... )
Dampen power(complete psi): you take minimal damage from spells/powers/SLAs(?). Party gets hit by a 10d6 fireball, spend some Psi and take only 10 fire (preferably off of your already placed vigor)
Energy missile: the ability to choose 5 targets out of a group and not have to worry about aiming your AoE is awesome. note: there is a typo in the XPH, which is pointed out in complete psi. DC goes up like every other damaging power (2 psi to +1 DC).
3rd level
energy burst: 40ft radius burst, centered on you.
time hop: not the most powerful 3rd lvl power out there, but it can be used to save a dying comrade (long enough for the cleric to get close enough to heal) or make a heavy hitter go away long enough for the party to regroup.
4th
D-Door: great with energy ball, invest in a ring of feather-fall
Energy ball: fire-ball range, more versitility.
Freedom of movement: nuf said
Metamorphisis: Shapechange-lite. Due to the current polymorph rules, a warforged with adamantine body keeps his armor in any shape he takes...
DR (even if its just 2) + Vigor + sharepain + psi-crystal makes for an extremely hard to kill character... just make sure you have it going when you need it...
Deep impact (can't get til 5th, until then use psi-weapon) will soften the blow of losing so much BAB if you choose to enter melee.
A warforged psion isn't a tank in the normal RPG-sense... its more like a real world tank (thick armor, and blows stuff up).
Are you familiar with Magic of Incarnum? Warforged make wicked Totemists also...
The only psionic feats I am familiar with is the SRD(XPH?) in my siggie.
I also use Crystalkeep, but it has NOTHING about psionics at all.
Aside from that, I'll consider it, since Mecha-Hulk isn't available to me really anyway, lol.
