Drop Freeze and Snow Globe, not worth using in higher levels, subsume over Ice Wave because its worse than the other two (DE pls buff Frosty boy)

Ensnare for grouping, Avalanche with [Icy Avalanche] and [Biting Frost] for Overguard and Crit.

55 Strength becomes 145 with [Precision Intensify], and with 2 Tauforged Crimson Shards becomes 175 for full strip with one cast.
(Note that Ensnare doesn't use Strength)

[Boreal's Hatred] for a bit more Efficiency and synergy with [Brief Respite] and Molt Efficiency, [Archon Flow] pairs well with Arcane Energize for better energy economy. I'm not using Nourish, if you want you can use Nourish over Ensnare which frees up an arcane, but Ensnare is too good to pass up on unless you're running Magus Anomaly or something.

2 Tauforged Amber Shards for Casting Speed is MANDATORY, Avalanche is too slow without them.

1 Tauforged Azure Shard for energy max, bringing us to 502.

The rest is pretty self explanatory, you can swap [Rolling Guard] for your D mod of choice, I guess.

For reference, I use this at range with [Glaive Prime] heavy detonation on the frozen group, use a Bane mod or [Power Throw]. [Power Throw] is stronger but needs to ramp up first, Bane is fire and forget.