With the changes to the specializations, necros no longer get free condition duration. However, there are also very few armors that grant condition duration. So I decided to find how many runes offer this. Unfortunately, very few of them fit the bill for a condition necromancer. To add to the misfortune, it appears that the best rune for a condi necro is the Superior Rune of the Nightmare. You can buy these for 120 deadly blossoms each and they are account bount.
I really wish these things were not account bound on acquire. It looks like my first bit of time playing with this patch will be upgrading these runes :P