Frost Mage Best Legendaries in Shadowlands — Shadowlands 9.1.5

By doing Torghast, you will obtain Soul Ash, which can be combined with crafted base items and Runecarving to produce a legendary item of your choosing. Due to the time-gated nature of Soul Ash, and the limit of one equipped legendary, you should know which to craft for your chosen content. For more information about the systems involved, please refer to the Runecarving and Legendary Powers pages:

Focus	Legendary	Slots	Source
Single Target	Slick Ice	Waist or Legs	Torghast, Mort'regar, layer 3 or higher
Multi-target	Glacial Fragments	Legs or Back	Torghast, Coldheart Interstitia, layer 3 or higher.
Cleave, Burst, or Funnel Damage	Freezing Winds	Head or Hands	Sire Denathrius
Solo	Grisly Icicle	Shoulder, Head, or Neck	Honor PvP Vendor

The reason this table is split like this, and not by Raiding and Mythic+, is that Glacial Fragments is so ridiculously good on any form of multi-target, while basically being as though you are not even wearing a legendary while on single target. Likewise, Slick Ice is entirely useless on multi-target. Your decisions will be related to what type of content you are doing, and in the case of M+, what type of damage your group needs more of.

Slick Ice is the best raw single target legendary. Contrary to the tooltip, this increases Frostbolt's damage by 3% per stack, and has a hidden effect of reducing Frostbolt's global cooldown by the same amount of cast speed increase. This allows for it to not hit the GCD hard cap while under other effects, such as Time Warp.

While Slick Ice is the best in pure single target, very few fights are purely single target. It may be advisable to instead craft Freezing Winds, which is a fair drop on single target, for a sizable 2-target gain. Temporal Warp is another option, although it skews more towards single target performance than cleave.

Glacial Fragments is the best on any form of multi-target, at the cost of being functionally useless on single target. This AoE burst cannot Shatter, and Splitting Ice will trigger it off both targets.

Like single target, Freezing Winds is not a terrible option for multi-target. However, Glacial Fragments will pull drastically ahead as you add targets. Your decision between them all is a matter of trade-offs, and personal decisions as to what sort of content you wish to be proficient at quickest.

Any of the above will be suitable for Torghast if you are only able to craft one legendary. However, Grisly Icicle is very likely one of the best due to the fact that it grants you unbreakable Frost Nova for 10 full seconds of Shatter on entire packs of mobs. This can be broken by party members, so is best used while solo only. It can mean that with Ice Ward or Tundrid Phial, you can hold down an absurd amount of mobs for an extremely long time, or even indefinitely should you have enough stacks of Tundrid Phial, however.

In Season 2, Domination Shards limit the slots you can practically craft legendary pieces in. While in Season 1, it was preferred to aim for highest stat budget slots, such as helmets, Domination Shards are always in helmets, shoulders, chests, bracers, and belts. You should avoid crafitng a legendary in that slot, and should replace it if you did for Season 1.

To that end, the Season 2 legendary slot priority is thus:

1. Legs
2. Gloves, Boots
3. Cloak
4. Neck, Rings

Patch 9.1 brings Covenant-specific legendaries. Sadly, it would appear that these are completely useless. They all fall behind the current three suggested legendaries for their given niches. Avoid crafting them if you value your Soul Ash.