Pretty sure I missed at least 2 sets, if you got them, I'd love to see them in a reply.
New Monstersets:
KARGAEDA'S VISAGE
(1 item) Adds x Maximum Magicka
(1 item) Adds x Maximum Stamina
(2 items) On dealing damage with a Heavy Attack, create a whirlwind that slowly moves forward for 8 seconds, growing 3 meters every 3 seconds. Enemies within the whirlwind take 471 Shock Damage and 471 Physical Damage every second. Allies within the whirlwind reduce their Magicka and Stamina costs by 10%. This effect can occur once every 20 seconds and the damage scales off the higher of your Weapon or Spell Damage.
NAZARAY'S EPAULETS
(1 item) Adds x Maximum Health
(2 items) When you use an Ultimate ability, the closest 6 enemies within 12 meters have all Damage Over Time, Major Debuffs, and Minor Debuffs applied to them extended by 1 second per 25 Ultimate spent.
This effect will not apply to Damage Beams or Damage Tethers. This effect can occur once every 20 seconds per target.
New sets (pretty sure I missed two here):
GLACIAL GUARDIAN'S CUIRASS
(2 items) Adds x Armor
(3 items) Adds x Maximum Stamina
(4 items) Adds x Health Recovery
(5 items) When you Block an enemy within 8 meters of you, tether to them for 8 seconds. While tethered, you deal 368 Frost Damage every second to enemies touching the tether and cause them to have a 200% increased Status Effect Chance. The tether breaks if the target moves more than 12 meters away. This effect can occur once every 12 seconds and the damage scales off your Max Health.
GRIDLE OF THE TURNING TIDE
(2 items) Adds x Maximum Health
(3 items) Adds x Maximum Stamina
(4 items) Adds x Maximum Health
(5 items) When you Block, you gain Flowing Water for 10 seconds, causing your next Bash attack to deal 3191 Magic Damage to up to 6 enemies in a 10 meter line, and apply Major Vulnerability for 10 seconds, increasing their damage taken by 10%. This effect can occur once every 15 seconds and scales of your Max Health.
STORM-CURSED GREATSWORD
(2 items) Adds x Maximum Magicka
(3 items) Adds x Weapon and Spell Damage
(4 items) Adds x Offensive Penetration
(5 items) When you deal Shock Damage, you have a 15% chance to deal 1360 Shock Damage to the enemy and up to two other enemies within 5 meters. This effect scales off the higher of your Weapon or Spell Damage.
MALIGALIG'S GLOVES
(2 items) Adds x Maximum Magicka
(3 items) Adds x% Healing Done
(4 items) Adds x Weapon and Spell Damage
(5 items) On overhealing yourself or a group member with a Direct Heal, apply Maligalig's Maelstrom to the target for 6 seconds that deals Shock Damage to enemies within 7 meters. This damage is based on 33% of the overhealed amount, up to 3300. This effect can occur once every 10 seconds.
In my opinion, Nazaray's looks completely broken. The two tank sets look very strong as well. The other two sets are lacking.