Here's a shot at it Soul
Level 63 I put the 5 points into toughness for the added bonus to Bladed Armor.
Frost damage isn't a big deal since you only have IT and frost fever for frost damage so you would benefit more from it.
Go 44 deep into blood to get to Heart Strike, then back over to Frost to get Annihilation. Until you get full Annihilation at 63, you could Death Strike for Death Runes.
Just a random thought :p