I compiled the change history and comparison table of all Class Item Sets in this PTS cycle
Let's see which set is the most valued by ZOS and which set is the abandoned child


Original V9.2.0
Basalt-Blooded Warrior – Dragonknight, Earthen Heart
2 – Adds 129 Magicka Recovery
3 – Adds 1206 Maximum Health
4 – Adds 129 Weapon and Spell Damage
5 –Casting an Earthen Heart ability grants you a Rock Stance buff for 20 seconds, with a 20 second cooldown. While on your Front Bar, you gain Molten Stance, granting you Major Heroism and Minor Heroism, generating 4 Ultimate every 1.5 seconds. While you are on your Back Bar, you gain Obsidian Stance, increasing your Healing Done and Damage Shields by 14%. Bar Swapping will swap your Stance automatically.

Wrathsun – Templar, Dawn’s Wrath
2 – Adds 129 Weapon and Spell Damage
3 – Adds 657 Critical Chance
4 – Adds 129 Weapon and Spell Damage
5 – When you deal damage with a Dawn’s Wrath ability, gain a stack of Sunlight for 10 seconds, once per attack. You can have 50 stacks max and gain 12 Magicka Recovery per stack. When at max stacks, your Dawn’s Wrath abilities deal 25% bonus damage and a Wrathful Nova is automatically cast on the enemy, but you cannot refresh Sunlight. When Sunlight expires at max stacks, you lose 50% of your current Magicka.

Monolith of Storms – Sorcerer, Storm Calling
2 – Adds 657 Critical Chance
3 – Adds 129 Weapon and Spell Damage
4 – Adds 129 Weapon and Spell Damage
5 – Dealing damage with a Storm Calling abilities' initial hit or every 5th tick, creates a Monolith near the enemy for 10 seconds, up to one every 1 second. You may have up to 3 Monoliths at a time. Monoliths link to your other Monoliths within 28 meters of each other, each link dealing 3064 Shock Damage every 2 seconds to enemies between and near them. An enemy can only take damage from this set once every 2 seconds.

Soulcleaver – Nightblade, Siphoning
2 – Adds 129 Weapon and Spell Damage
3 – Adds 1206 Maximum Health
4 – Adds 129 Weapon and Spell Damage
5 – While in combat and with at least 20 Ultimate, strengthen your Siphoning abilities at the cost of Ultimate: Increase the damage and healing of Siphoning abilities by 17% of your current Ultimate, up to 200 Ultimate, from a minimum of 3% to a maximum of 34%. Reduce the cost of Siphoning abilities by 15%. Casting a Siphoning ability while in combat drains you of 1% of your current Ultimate, with a minimum of 1.

Gardener of the Seasons – Warden, Green Balance
2 – Adds 4% Healing Done
3 – Adds 129 Magicka Recovery
4 – Adds 129 Weapon and Spell Damage
5 – Casting a Green Balance ability grants you Herald of Spring, causing your Green Balance overheals to apply Minor Heroism for 3 seconds. Casting 2 non-Green Balance class abilities within 2 seconds consumes Herald of Spring and grants you Harbinger of Fall for 10 seconds, causing your Green Balance Overheals to create an 8 meter area for 5 seconds, applying Major Maim to enemies and Minor Vitality to allies within. You can only create an area once every 5 seconds. You cannot gain Herald of Spring while Harbinger of Fall is active.

Nobility in Decay – Necromancer, Bone Tyrant
2 – Adds 1206 Maximum Health
3 – Adds 4% Healing Taken
4 – Adds 1206 Maximum Health
5 – Casting a Bone Tyrant ability while in combat grants you Beautiful Corpse, Minor Protection, and Minor Resolve for 16 seconds, reducing your damage by 5% and increasing your Armor by 2974. This can proc once every 20 seconds and is reduced by 2 seconds for each slotted Bone Tyrant ability. Casting a corpse consumer ability consumes Beautiful Corpse, treating you as a corpse.

Reawakened Hierophant – Arcanist, Curative Runeform
2 – Adds 1096 Maximum Magicka
3 – Adds 1096 Maximum Magicka
4 – Adds 1096 Maximum Magicka
5 – Casting a non-Ultimate Curative Runeform ability grants an effect for 6 seconds to your affected allies based on how many Crux you had. At 1 Crux, allies gain a damage shield that absorbs 3618 damage. At 2 Crux, allies gain Minor Heroism. At 3 Crux, allies gain Major Protection.