This is my [Frost] build, my personal favorite. I call this build the Avalanche of Death. Equip [Frost] with the [Biting Frost] Augment to gain 200% Critical Chance and 200% Critical Damage against frozen enemies from his ability 4, Avalanche. I gave him a little more health by using the aura [Physique] mod. My build is more of a long range fighter. Why use Energized munitions? Allow me to explain... My [Frost] uses the [Amprex], so reloading that gun is a tad slow, imo. So I use Energized Munitions to [Stretch] the ammo a little, less reloading. I recommend becoming a Zenurik Operator and equipping a Deth Cube companion or a [Sahasa Kubrow] to have the energy constantly filled to spam Avalanche. If you don't like the energized munitons, You can replace it with [Protea]'s Dispensary ability for energy refills and ammo for the [Amprex]. Finally, for casting speed, I recommend using two Amber Archon Shards and investing both in the casting speed. It gives you a total of 50%!