Duriel by Cranus24

Level 1

[D] Bane of your Existence:
Quest: Slow enemy Heroes with Feast on Pain.
Reward: After slowing Heroes 60 seconds, increase the radius of Feast on Pain by 33%.
Reward: After slowing Heroes 120 seconds, increase the slow to 35%.
Reward: After slowing Heroes 150 seconds, Duriel also gain 10 Health Regeneration for each enemy Hero affected by "Feast on Pain".

[Q] To the Weak
Quest: Use Painful Cut on enemy Heroes.
Reward: After hitting 20 enemy Heroes, the cooldown of Painful Cut is reduced by 0,5 seconds each time it deals damage to a enemy hero under 50% Health.
Reward: After hitting 40 enemy Heroes, Duriel gain 8 maximal Health each time Painful Cut deals damage to a enemy hero. This bonus is lost on Duriel's death.

[E] Corpse Maggots
Each Maggot summoned by Leeching Maggot's grands 40 Physical Armor against the next enemy Hero Basic Attack, reducing its damage by 40%. Stores up to 5 charges.
Quest: Hit 20 Heroes with Leeching Maggot's.
Reward: After hitting 20 enemy Heroes with Leeching Maggot's, every 25% maximal Health Duriel lost casts a free Leeching Maggot's. (Cooldown of 4 seconds)

Level 4

[D] Enjoying the Cries
Duriel gains 20% Movement Speed, if the move towards an enemy Hero below 50% maximal Health.

[W] Crawling
Increase the range of Sadistic Charge by 35%.

[Active] Limb by Limb
Activate to increase Movement Speed by 20% for 2 Seconds and deal 50 Damage per second to all enemies in front of Duriel while moving.

Level 7

[D] False Hope
Increases regeneration effects and all healing received by 0,6% for every 1% of maximum Health missing.

[W] Duriel's Shell
Sadistic Charge now grands 20 Armor for 3 seconds, reducing damage taken by 20%.

[E] Healing Parasyte's
Increase the healing of Leeching Maggot's to 100% of the Damage dealt.

Level 10

[R1] Agony
Deal 10% of the current Health per second for 15 seconds to an enemy Hero. When the Hero reach 25% of there maximal life it stuns the target for 3 seconds.

[R2] Torture
After 1 second, pull enemies in front of Duriel towards him and channel to stun them and deal 5% of there current health as damage each 0,5 second for 2,5 second.

Level 13

[Q] Open old Wounds
Enemies hit by Painful Cut receive 35% less healing for 4 seconds.

[W] Slam
Increase the knockback of Sadistic Charge by 50% and stuns the target for 0,75 seconds.

[E] Over-eaten Maggots
Increase the range of Leeching Maggot's by 50% and the radius by 25%.

Level 16

[D] Sadistic by Nature
Autohit's against enemy heroes below 50% health reduce the cooldown of Duriel's Basic Abilities by 1 second.

[W] Demonstration of Power
Sadistic Charge gains 3% increased damage on your next Basic Attack for each 1% of the Targets missing Health.

[Active] Freezing Hell
Duriel empowers Feast on Pain and deals 320 Damage over 8 seconds to all enemies around him and slows regardless of there current Health.

Level 20

[R1] Suffering
Everytime the enemy Hero takes Damage from Agony, nearby enemy Heroes are feared for 1 second.

[R2] Unending Pain
Torture's range is increased by 50% and Duriel is healed for 100% of the Damage dealt.

[Q] Cutting through Flesh
Painful Cut now hits all enemies in front of Duriel.

[E] Maggot King
When Duriel die, 10 Maggots appear from his corpse, each Maggot that deal damage to an enemy hero reduces your Deathtime by 5 seconds. When a nearby enemy Hero dies, 3 Maggots appear from their corpse.
Increase the damage dealt by Leeching Maggot's by 25%.