Below I've put together some basic information for people derived from SimC runs to help guide mages choices on how they want to play Frost mage.
All sims are done at mythic NH ilvl, with maxed artifact traits and 1 point in Concordance. (No legendary items used)
default_actions=1 (this doesn't work for the ring at the moment, manaully add the action)
Table of Contents:
1)Single Target Talent Comparisons
2)Single Target Stat Weights
3a)Four Target Talent Comparisons
3b)Four Target Priority Target DPS
3c)Four Target Stat Weights
9)Frequently Asked Questions
Image courtesy of Zulandia
4 Target AoE
7.2 trait comparison (1 point given to each)
2) What's going on with Stat Weights?
Crit value has been raised significantly by the 7.1.5 buffs. As a result, it's valued highly over haste/int until you reach the shatter cap (~33%). After that, Crit declines sharply in value.
Here are weights right after the shatter cap. Crit has declined an Haste has taken over. However, haste does not remain the best stat. Because of large haste procs that are available in NH (Whispers/Metronome), Frost actually beings to GCD cap (100% haste) and FB cast time cap (166% haste) often enough for us to see a slow lowering of haste value as we add more haste. We're encountering haste DRing itself as the %time spend GCD/FBcast time increases with haste.
As we can see, haste is going lower and lower, and will eventually be passed by Vers. If we continuing to gain haste.
3) How do I use Freezing Rain? Do I blizzard on ST?
Use it on >1 target, not on Single Target.