How about?

[Constantinos]

14 FIGHTER 6 WARLOCK?
Brilliance, Shining through, displacement, extra umd and some defensive enhancements from ES.
CON based using TYWA INT second for KTA.
14 FIGHTER for all but one tacrical DC increasing feats. DIRE CHARGE.
Greataxes or mauls.No idea if you can fit the 20% extra hp stance along with the +6 to CON.

What do you guys think about this?

[adrian69]

14 FIGHTER 6 WARLOCK?
Brilliance, Shining through, displacement, extra umd and some defensive enhancements from ES.
CON based using TYWA INT second for KTA.
14 FIGHTER for all but one tacrical DC increasing feats. DIRE CHARGE.
Greataxes or mauls.No idea if you can fit the 20% extra hp stance along with the +6 to CON.

What do you guys think about this?

I have a 12 lock/6 ftr/2 x build that became 9 lock/8 ftr/3 barb and later 12 ftr 5 lock 3 barb. The issue with 14 levels is spell power issues and gearing, well focus really. It's aura is not going to be as good as 18-20 and missing the melee feat or caster feats make it worse.

5 lock gets blur, brilliance, and 3d4 light damage. Brilliance is what matters though. In epic reaper, It's an additional avg 140 every 5 seconds, for me, but depending on how high you can get your con score. Yeah 6 lock makes it 4, technically increasing it's value by 30, but losing power surge loses most of that.

I haven't tried Drarf and TYWA personally, but I've read it's technically an awful sack of HPs, which is why I haven't tried it.

However, I think anything can work within reason.

Tired and rambling. Let us know if you try it.

[Constantinos]

So, I've played a little bit with the enhancements and came out with these conclusions:
You need TYWA from the dwarven tree for CON to DMG. Min AP spent in the dwarven tree: 18 AP spent.
You need KTA for half INT modifier to DMG and DC's of DIRE CHARGE: 7 AP spent.
You need Enlightment Spirit's Shining through and displacement: 34 AP spent.

Then I came out of 2 variations of this build.

1st variation. If you have 2 RACIAL ENHANCEMENT POINTS:
Your saving 2 enhancement points from the dwarven tree and you are able to get the stelward defence stance for PRR/MRR 20% hp and +6 to your CON.
14 FIGHTER / 6 WARLOCK BUILD.

2nd variation, let me think of a cool name lol!