It is an interesting heavy set but why have you decided to add so much cold resistance on it? With 3 bars cold resistance, volcano is out of the question, you get heatstroke in the desert and jungle, you are extremely hot in the highlands, hot in the mounds, soothing in the frozen lands.
Considering that there is not much to do in the frozen lands content-wise currently which would require you to wear heavy armor, this set would have a very limited player use. We will see plenty of thralls wearing it though due to its high armor (as long as their owners are willing to farm the materials for it, you need dragonpowder and dungeon materials).
To provide a bit more info for the exiles without access to TestLive:
A very heavy armor +3 strength/agility/grit/encumbrance with 3 cold bars per part. 1022 armor value without modifications but the chestpiece alone is 53.58 lt. 10800 durability on chestpiece/leggins + 7200 durability on the rest of the parts.Grants a status effect: Weapon is repaired by a small amount each time you take damage. The helmet acts as a sandstorm mask.
Would you consider lowering the cold resistance to maybe 2 bars instead?