Grommash hellscream by Apolloknight82

Level 1:

Wind Whisper: Movement speed from Wind Walker is increased to 25%.

Regeneration Master: Gathering Regen orbs increases your health regeneration by 1.5 for every orb gathered. 

Seasoned Blademaster: Minions killed in your vicinity passively increase your critical hit damage by 1% for every 6 minions killed, hero kills count as 2 kills. 

Mortal Wound: The bleed from Eviscerate now last 7 seconds.


Level 4:

Wind Fury: Wind Walker now causes the first 4 attacks to be critical hits. 

Focused Rage: Every other Critical Strike deals 50% increased damage. 

Toxic Gas: Smoke bomb also poisons those affected dealing 15+3 damage per level for the duration. 

Blazing Axe: Activate to increase basic attack damage by 40% for 5 seconds. Each attack cost 10 mana. 
 
Vampiric Hunger: Critical hits restore 4% of the damage dealt to your health. 

Level 7

Follow Up Strike: After using a Basic Ability, your next critical strike cleaves in a cone around your target dealing 50% of its damage in that AOE. Your primary target still takes full damage. 

First Aid: Activate to heal for 35% of Your Maximum health over 6 seconds. 

Smell of Blood: Eviscerate has its range increased by 40%. Additionally, if cast on a target below 50% life, the bleed damage is increased by 40%. 

Level 10

Bladestorm
Blood Rage

Level 13

Quick Reflexes: Enemy hero Basic Ability Skill shots targeted against you are blocked and returned to their sender dealing 75% reduced damage. Holds 2 charges, 60 second internal cooldown.

Tinker smith: Smoke Bomb's duration is increased to 6 seconds and mana cost is reduced by 25. 

Blood Renewal: Eviscerate's bleed restores an equal amount of health to you as long as you stay in the vicinity of the target for its duration. 

War with Giants: If the target of your basic attacks has more health than you, you are healed for 4% of your basic attack damage until they no longer have more health than you. 

Level 16: 

Rampage: You passively gain 5% increased basic attack damage. Every Hero Kill grants you an additional 5% increased basic attack damage. This can stack up to 5 times. All stacks are lost upon death. 

One with the wind: Wind Walker now cloaks you permanently upon activation, buts its cooldown is increased to 20 seconds. 

Fury of Gore hound: Your passive skill bonuses and Combat trait bonuses are activated at 70% life instead of 50% life. 

Chop Chop: Critical strikes now reduce your targets maximum life by 8%. Additionally, they suffer 15% reduced healing from all sources for the duration of the life debuff. 

Level 20:

Blade Master: Blade Storm does 50% increased damage and slows anyone struck by 40% for 1 second. (must pick Blade Storm)

Last Stand: When you are stuck for damage that would kill you, fight on for an additional 5 seconds. Your movement speed, basic attack damage and basic attack speed are all increased by 25%. You are unstoppable while in this state. If you get a hero kill while in this state, Last stand ends, you do not die and you are set at 150 health. (Must pick Blood Rage)

Nexus Blades: Basic Attacks deal 20% more damage and slow the target for one second. 

I will avenge you: If an allied Hero is killed near you, gain 20% increased health regan and 15% increased attack speed and damage for 8 seconds. Can stack up to 5 times. The duration is refreshed each time a new stack is applied.