Here we go, and blizz dont even have to pay me.
Strangulate: remove rune cost, GCD and facing requirement
Boneshield: make this baseline
Icebound Fortitude: Increase dmg reduction
Remove Pet summon CD, remove all pet spells of GCD, and remove rune cost from Dark Transformation.
Increase Chains of Ice duration.
Overall Frost dmg needs to be reduced a bit, maybe?
Fixed your dk class for you right here.
Your welcome :P
(This post is aimed at PVPers)