Level Talent Name Description Cooldown
1 Barbed Chains Increase Chains of Kel'Thuzad damage by 125%. After gaining 30 Blight, Chains of Kel'Thuzad reduces the Armor of pulled Heroes by 15 for 4 seconds.
1 Blighted Frost Frost Nova deals 50% more damage to enemies in the center. After gaining 30 Blight, increase Frost Nova's Root duration by 0.5 seconds.
1 The Plaguelands Increase Death and Decay's duration by 1 second. After gaining 30 Blight, increase the radius of Death and Decay's pool by 30%.
4 Armor of the Archlich Activate to gain 50 Physical Armor for 4 seconds. Upon activation, nearby enemies take 45 (+4% per level) damage and are Slowed by 35% for 4 seconds. 25
4 Phylactery of Kel'Thuzad Quest: Collect 12 Regeneration Globes to charge Kel'Thuzad's Phylactery. Reward: Kel'Thuzad's Phylactery can be activated while dead to immediately respawn at the Hall of Storms, but must be charged again. Passive: Kel'Thuzad heals for 10% of all Spell Damage dealt while the Phylactery is charged.
4 Strip Shields Pulling a Hero with Chains of Kel'Thuzad grants Kel'Thuzad a permanent 120 (+4% per level) Shield, stacking up to 2 times. Additionally, Chains of Kel'Thuzad deals up to 270 (+2.5% per level) bonus damage to Shields.
7 Accelerated Decay Each time a Hero is hit by Death and Decay's pool, they take 25% more periodic damage from Death and Decay for the next 4 seconds, stacking up to 6 times.
7 Chilling Touch Every 8 seconds, Kel'Thuzad's next Basic Attack hits nearby enemies, deals Spell damage instead of Physical, and Slows by 30% for 2 seconds.
7 Glacial Spike Activate to create a spike that detonates after 4 seconds, dealing 60 (+2.5% per level) damage to nearby enemies. The spike can be affected by Chains of Kel'Thuzad. 30
10 Frost Blast Launch a meteor of ice at an enemy Hero. Upon impact, the meteor deals 100 (+2.5% per level) damage to its target and 275 (+2.5% per level) damage to enemies in the area. All enemies hit by Frost Blast are Rooted for 1.5 seconds. 70
10 Shadow Fissure Create a fissure anywhere on the Battleground that explodes after 1.5 seconds, dealing 400 (+2.5% per level) damage to enemy Heroes in its area. 20
13 Chain-Link Pulling two Heroes together with Chains of Kel'Thuzad reduces its cooldown by 4 seconds and refunds its Mana cost.
13 Chains of Ice After Chains of Kel'Thuzad's Stun expires, the enemy is also Slowed by 60% for 1 second.
13 Icy Grasp Increase Frost Nova's Slow duration by 2 seconds.
16 Arcane Echoes Whenever Kel'Thuzad hits an enemy Hero with Death and Decay's explosion, its cooldown is reduced by 1.25 seconds.
16 Hungering Cold Enemies Rooted by Frost Nova take an additional 55 (+2.5% per level) damage each time they are damaged by Kel'Thuzad during the next 4 seconds.
16 Power of Icecrown Stunning, Rooting, or Slowing a Hero grants 6% Spell Power for 10 seconds, stacking up to 5 times.
20 Deathchill When Frost Blast's Root expires, enemies are Slowed by 40% for 3 seconds. Heroes killed while under the effects of Frost Blast instantly release another Frost Blast explosion.
20 Might of the Scourge Hitting a Hero with Shadow Fissure resets it cooldown.
20 Shifting Malice Activate to dash forward, dealing 150 (+2.5% per level) damage to enemies in the path. Takedowns reset the cooldown of Shifting Malice. 240
20 The Damned Return Activate to create a Shade of Naxxramas that lasts 15 seconds and mimics Kel'Thuzad's casts of Death and Decay. 15
Shortcut Ability Name Description Cooldown Mana Cost
Q Death and Decay After 0.5 seconds, launch an orb that explodes upon hitting an enemy, dealing 150 (+2.5% per level) damage to enemies in the area. The explosion leaves behind a pool of decay that lasts 2 seconds, dealing 70 (+2.5% per level) damage every 0.5 seconds to enemies. 6 20
W Frost Nova Create a nova that explodes after 1 second, dealing 212 (+2.5% per level) damage to enemies inside and Slowing them by 35% for 2.5 seconds. Enemies in the center are Rooted for 1 second. 10 50
E Chains of Kel'Thuzad Launch a chain, dealing 97 (+2.5% per level) damage to the first enemy Hero or Structure hit. For 4 seconds after hitting an enemy, Chains can be reactivated to launch to an additional enemy, pulling both enemies together and Stunning them for 0.5 seconds. 12 50
R Frost Blast Launch a meteor of ice at an enemy Hero. Upon impact, the meteor deals 100 (+2.5% per level) damage to its target and 275 (+2.5% per level) damage to enemies in the area. All enemies hit by Frost Blast are Rooted for 1.5 seconds. 70 60
R Shadow Fissure Create a fissure anywhere on the Battleground that explodes after 1.5 seconds, dealing 400 (+2.5% per level) damage to enemy Heroes in its area. 20 60
None Master of the Cold Dark Quest: Gain 1 Blight every time a Hero is Rooted by Frost Nova or hit by Chains of Kel'Thuzad. Reward: After gaining 15 Blight, the cooldown of all Basic Abilities is reduced by 2 seconds. Reward: After gaining 30 Blight, gain 75% Spell Power.

Kel'Thuzad

2017-11-14 Patch Notes

Bug Fixes

  • Kel'Thuzad: Glacial Spike will now correctly deal bonus damage granted by Ability Power gains.
  • Kel'Thuzad: The Hungering Cold Talent will now correctly deal its bonus damage to non-Heroic enemies rooted by Frost Nova.

2017-10-11 Balance Update

Hero Updates

Abilities

  • Frost Blast (R)
    • Cooldown reduced from 80 to 70 seconds
    • Mana cost reduced from 70 to 60

Talents

  • Level 4
    • Strip Shields (E)
      • Shield amount increased from 112 to 120
  • Level 13
    • Icy Grasp (W)
      • Increased slow duration from 1.5 to 2 seconds
    • Chain-Link (E)
      • Added functionality:
        • Also refunds the Mana cost of Chains Of Kel’Thuzad

Bug Fixes

  • Kel'Thuzad: Shadow Fissure can now be cast between map levels on the Haunted Mines battleground.
  • Kel'Thuzad: Shadow Fissure can now be cast on the minimap.

2017-09-20 Balance Update

Hero Updates

Abilities

  • Frost Nova (W)
    • Mana cost increased from 45 to 50
  • Chains of Kel’Thuzad (E)
    • Mana cost increased from 45 to 50
  • Frost Blast (R)
    • Cooldown reduced from 100 to 80 seconds
  • Shadow Fissure (R)
    • Damage reduced from 440 to 400
    • Cooldown increased from 15 to 20 seconds
    • Mana cost increased from 50 to 60

Talents

  • Level 4
    • Phylactery of Kel’Thuzad (Active)
      • Quest requirement increased from 10 to 12 Regen Globes
  • Level 7
    • Accelerated Decay (Q)
      • Bonus damage increased from 20 to 25%
    • Glacial Spike (Active)
      • Damage reduced from 220 to 60
      • Delay before the spike spawns increased from .5 to 1 seconds
  • Level 13
    • Chains of Ice (E)
      • Slow duration reduced from 1.25 to 1 second
      • Slow amount decreased from 70 to 60%
  • Level 16
    • Hungering Cold (W)
      • Bonus damage reduced from 60 to 55

Developer Comment: As expected, there is a fairly large discrepancy between Kel’Thuzad’s performance across the entire game vs. players who are getting experienced with him at a higher level. His win-rate has climbed more than most of our other releases as players get used to his kit, so most of our changes are aimed at talent balance and toning his power down. While we like the sharpness of his power spike due to Master of the Cold Dark, we’ll continue to keep an eye on his burst potential and his overall strength going forward.


2017-09-05 Patch Notes

New Hero

Kel'Thuzad has faithfully served the Lich King both in life and after death. Reanimated as the Archlich of the Scourge and given domain of the Dread Necropolis, Naxxramas, Kel’Thuzad remains Arthas’s most trusted advisor and master of the cold dark.

Trait

  • Master of the Cold Dark
    • Quest: Gain 1 Blight every time a Hero is Rooted by Frost Nova or hit by Chains of Kel'Thuzad.
    • Reward: After gaining 15 Blight, the cooldown of all Basic Abilities is reduced by 2 seconds.
    • Reward: After gaining 30 Blight, gain 75% Spell Power.

Basic Abilities

  • Death and Decay (Q)
    • After 0.5 seconds, launch an orb that explodes upon hitting an enemy, dealing damage to enemies in the area. The explosion leaves behind a pool of decay that lasts 2 seconds, dealing damage every 0.5 seconds to enemies.
  • Frost Nova (W)
    • Create a nova that explodes after 1 second, dealing damage to enemies inside and Slowing them by 35% for 2.5 seconds. Enemies in the center are Rooted for 1 second.
  • Chains of Kel'Thuzad (E)
    • Launch a chain, dealing damage to the first enemy Hero or Structure hit. For 4 seconds after hitting an enemy, Chains can be reactivated to launch to an additional enemy, pulling both enemies together and Stunning them for 0.5 seconds.

Heroic Abilities

  • Frost Blast (R)
    • Launch a meteor of ice at an enemy Hero. Upon impact, the meteor deals damage to its target and damages enemies in the area. All enemies hit by Frozen Tomb are Rooted for 1.5 seconds.
  • Shadow Fissure (R)
    • Create a fissure anywhere on the Battleground that explodes after 1.5 seconds, dealing damage to enemies in its area.