All skills are either innately cold or converted to cold. This is to provide ample amounts of Chill, Frostbite and PrefixFreeze Rate per stack of Chill. This will severely increase the survivability of you and any allies you have. In combination they slow, deal damage over time and occasionally freeze enemies in place. Every skill in the loadout is capable of one or more of these debuffs.
Activate Maelstrom while gaining additional stacks from Beneath The Waves and refresh as needed. This will allow you to sustain your PrefixMana while dealing consistent AoE damage and crowd controlling enemies.
Use Crowstorm which is provided by Summon Storm Crows and simply requires and additional press of the ability button for mobility. This is one of the best traversal skills in the game as it allows you to move through walls, down elevation changes like staircases and other things that other traversal abilities can often fail to do.
Placing Summon Storm Totem on ranged enemies can be highly effective. It has a health pool of its own and will distract the nearby enemies while damaging and crowd controlling them. This is also an incredibly strong ability while leveling. Lastly, although transformed to cold it still provides lightning damage as well and is useful for cold resistant enemies.
Avalanche hits incredibly hard and through the specialization tree you can have 100% uptime and make the storm follow you. This allows you to freely move and avoid damage while dealing large amounts of damage at the same time. It also provides crowd control similar to all the other abilities and once unlocked the character basically snowballs to new heights.
Warcry may seem out of place but it in fact has lots of synergy once converted to cold. With the ability to freeze enemies and boost the cold damage output of you and allies by an amazing 250% for 4 seconds it's your burst cooldown. Use this on bosses and high health mobs as your mana allows. You can also use it defensively to freeze all nearby enemies in tough situations.