@Teng @Harperson
All those you mentioned are:
• Dungeon Armor (nothing from the base knowledge tree)
• Heavy Armor (no light or medium option)
• Their bonuses are not exactly optimal (which is fine, there should be a tradeoff if you get +40% agility bonus damage like the Ranger Armor gives)
The Dragonscale Helm cannot be crafted, and cannot be repaired; it is however the best option for temperature protection, and it is medium armor instead of heavy so it is really good overall.
The issue isn’t that there are no options whatsoever, but that the options are a bit too restricted.
You can get Redeemed Helmet and Pauldron, with Arena Champion Gauntlets, and those are all +8% Strength Damage Bonus… But they are all Heavy Armor Pieces, and you will not find an equivalent for Agility Damage Bonus 
My personal solution has been to go full Ranger Armor and to carry the Dragonscale Helm as well as the Commander’s Helmet for Temperature resistance and Gas Protection when needed, but both of those are rare drops that cannot be repaired 
3 Likes