Wait, you mean Improved Icy Talons, don't you? That would be 26 points in Frost. Abomination's Might is 27 points in Blood. I doubt there's a good tree starting with 27/26.
If you finished out with Blood, you could get down to Heart Strike and 3/3 Might of Mograine. In Frost, you can get Frost Strike and 3/3 Guile of Gorefiend. Either way, you'd be missing out on good talents in the top of the Unholy tree, and talents at the bottom of either Blood or Frost.
Just get one.
Abom's Might = Trueshot Aura = Unleashed Rage.
Improved Icy Talons = Improved Windfury Totem.