PTS Patch notes:
https://forums.elderscrollsonline.com/en/discussion/358541/pts-patch-notes-v3-1-0/p1

So sharpened got nerfed, Grothdar nerfed damage by 10%, Ilambris the same...

impenetrable trait they forgot fortunately, not nerfed...

WTH?????




Adjusted the values and bonuses of most Weapon Traits in the following ways, with the listed values being for Two-Handed, gold-quality items:
Decisive: Increased the chance to generate one additional Ultimate to 40% from 34%.
Defending: Reduced the Spell and Physical Resistance granted to 2752 from 5160.
Infused: Increased the bonus value granted to the applied enchantment to 30% from 20%, and increased the cooldown reduction to the applied enchantment to 50% from 40%.
Nirnhorned: Increased the bonus to the weapon’s damage to 15% from 11%.
Powered: Increased the bonus to healing done to 9% from 7%.
Precise: Increased the Critical Strike Chance granted to 9% from 7%.
Sharpened: Reduced the Spell and Physical Penetration granted to 2752 from 5160.
Charged, Intricate, Ornate, and Training remain unchanged.
The Prosperous Armor Trait has been re-designed to give it a combat function. It now grants 11 Health, Magicka, and Stamina Recovery as a gold-quality item, instead of gold gain.
Reduced the damage on the Damage Health (Oblivion) weapon enchantment by approximately 6%.
Weapon enchantments will no longer proc if the initial attack is dodged.

Item Sets
Developer Comments – “Proc Set” changes and Monster Mask balance:
Spoilerhide
Item Sets have received two major rebalancing efforts this update with a focus on introducing more counterplay to certain Item Set procs and improving diversity in Monster Mask choices.

To introduce more counterplay to certain Item Set procs, we’ve changed the method in which they deal damage. While we are happy with the current damage values of these Item Sets, having them deliver that damage in unavoidable bursts has led to an unsatisfying PvP experience. The procs of these Item Sets now have unique mechanics to delay their damage, along with accompanying visual effects to allow more time to react to them.

To go hand-in-hand with the release of two new Monster Mask Item Sets, we’ve rebalanced most of the older Monster Masks. To ensure that every Monster Mask conforms to similar Damage, Healing, and Survivability standards, most Monster Masks were brought up in power though a few were adjusted slightly downward.
Universally adjusted the values of some 1, 2, 3, and 4-piece bonus stats for all Item Sets:
Max Health, Magicka, or Stamina has been increased by 13.3%
Weapon Critical or Spell Critical rating has been increased by 55%
Physical or Spell Resistance has been increased by 13.8%
Physical or Spell Penetration has been decreased by 22%
Any monster summoned by an Item Set proc now inherits any bonuses you have. The most notable bonuses are damage done and healing done from passive abilities, Major/Minor buffs, or the Champion System.
Blood Spawn: Decreased the amount of Ultimate generated by this Item Set’s proc to 14 Ultimate from 15.
Death’s Wind: This Item Set now grants crowd-control immunity to the enemy after knocking them back.
Grothdarr: Decreased the damage of this Item Set’s proc by 10%.
Ilambris: Decreased the damage of this Item Set’s proc by 10%.