This build looks pretty decent overall. The main gap I'm seeing is that it isn't updated for the White March 2 expansion and later patches, which has a few implications:
1) The enemy AI is much improved, so I don't think it's as good an idea as it used to be to drop Con all the way down to 3. You'll need a little more survivability, especially on PotD. I mean you *could* you'll just lead your party in "times unconscious."
2) The powers added with the WM expansions aren't covered (time parasite is probably the worst rank 7 power now, as it doesn't stack with Deleterious Alacrity of Motion)
3) there are a few gear options I don't see mentioned, mostly from WM 2 (but pick up Angio's Gambeson in Dyrford for Deleterious Alacrity and keep it upgraded).