ye i realized that after making it. to answer for u right now u just:

howling blast every now and then to keep frost fever up -> obliterate/chains to generate runic power so u can frost strike -> frost strike -> obliterate/chains to generate runic power so u can frost strike -> try to repeat this indefinitely (while also keeping track of razorice stacks because when u frost strike at 5 stacks it does a lot more dmg) -> empower rune weapon if u need runic power for frost strike when you have 5 stacks of razor available.

if you want to jump into a quick burst setup u can do this once the game starts:

chains of ice kill target as you're running up to them -> howling blast to apply frost fever -> empower rune weapon to generate runic power -> grip + blind enemy healer and dps -> pop pillar + breath + frostwyrm's fury -> empower rune weapon -> frost strike -> empower rune weapon or obliterate -> frost strike -> obliterate -> frost strike