This is a collection of WeakAuras I made to help me on the artifact challenge for Frost Death Knight, Havoc Demon Hunter, Survival Hunter, Subtlety Rogue, and Arms Warrior.
There are two timers that let you know when each phase will begin (useful for prepotting). There is a transition soon weakaura that will make a solid guess as to when a transition is occurring from frost to arcane or arcane to frost during phase 1. Also, there is a simple debuff tracker for Seeds of Darkness.