Kel'Thuzad by ThoriumEx

Level 1:

- Mana Drain: Can cast on Minions and Mercenaries to drain their health and convert it into Mana.
- Frozen Spike: Frozen Spike can no longer be destroyed.
- Frost Armor: Now applies to Ranged Basic Attacks as well.
- Quest: Every 10 Minions (enemy or allied) killed around you, increase your Maximum Mana by 1.

Level 4:

- Frozen Spike: If successfully cast on an enemy Hero, deal 100 damage and stun for 0.5 seconds.
- Mana Drain: Now also slows the target by 10%.
- Frozen Armor: Now affects Minions and Mercenaries as well.
- Passive: Basic Attacks now deal additional damage, equals to 10% of your current Mana.

Level 7:

- Mana Drain: - Increase range by 20%
- Mana Drain: Can now move at 60% movement speed during Mana Drain.
- Frozen Spike: Increase Frozen Spike's size by 30%.
- Passive: Basic Attacks now steals 1% of your Maximum Mana from enemy Heroes.

Level 10:

- Chains of Death
- Death Bond

Level 13:

- Frost Armor: Now also creates a small aura around you that chills enemies.
- Frost Armor: Increase slow amount to 30% and increase length time to 3 seconds.
- Passive: 20% of received damage is now reduced from your Mana instead of your Health.
- Active: Activate to increase your Movement Speed by 40% for 3 seconds. While active, you freeze the ground you walk on for 3 seconds, enemies who walk on this frozen ground have their Movement Speed slowed by 20%. (Cooldown: 60 seconds)

Level 16:

- Shared Pain: Increase length to 4 seconds, Increase damage spreading to 40%, Increase Cooldown to 10 seconds.
- Frozen Spike: Now holds 2 Charges.
- Frozen Spike: If Frozen Spike expires it explodes, dealing 100 damage to all enemies in a small area around it.
- Mana Drain: If Mana Drain lasts its full duration, steal an additional 10% of the target's Maximum Mana.

Level 20:

- Chains of Death: Now chains 3 enemy Heroes.
- Death Bond: Increase Channel time to 3 seconds and increase range by 20%.
- Chilling Attacks: Basic Attacks now Chill enemies, slowing their Movement Speed and Attack Speed by 10% for 1 second.
- Frost Armor: Can now cast an untalented Frost Armor on an allied Hero.