Grommash Hellscream by Kruger

Use blood instead of mana, which is gained by taking or dealing damage. Blood also increases your basic attack damage and speed by 0.1% per blood stack. Maximum of 200 stacks of blood, lose 100 stacks when you die.

Cooldown:10 Seconds

Slam Gorehowl on the ground dealing 220(+4% per level) damage to all enemies in front of you and giving them a bleeding effect that lasts 4 seconds. Enemies that have the bleeding effect on them are damaged for an extra 20(+4% per level) damage per second and give you 2 blood per second for the duration.

Blood:50
Cooldown:15 Seconds

Activate to give your basic attacks a 15% chance to deal up to an additional 300% of your normal basic attack damage for 5 seconds.

Blood:45
Cooldown:25 Seconds

Activate to gain stealth for 5 seconds and unstoppable for 3 seconds while you are in stealth. You do not lose stealth from taking damage, but you do lose stealth from dealing damage. Your first basic attack from stealth deals an additional 50% damage.

Whirl Gorehowl around becoming unstoppable and dealing 90(+4% per level) damage per
second to all nearby enemies.

Create a copy of yourself at a target location that mimics your basic abilities and attacks for 80% damage. Reactivate the ability to retarget.