Frost opener as Dance. Premed-->sap-->garrote--->(no white hits)---> KS--->Dance to force the block.
Frost opener as Mutilate---> Sap--> Vendetta--> garrote--> Mutilate---> (Trinket nova?)---> KS--->(blink)vanish--->sprint--->sap / garrote.
I am looking for more detail on how to open or open better for the situation at hand when playing a frost mage.