Level 1
Block - Periodically reduces the damage received from Hero Basic Attacks by 50%. Stores up to 2 charges.
Voidwalking - Removes the movement speed reduction from Voidform.
Nightmares - Torment slows the target's movement speed by 25% instead of 10%.
Unending Torment - Reduces the cooldown of Torment by 3 seconds.
Level 4
Suffering - Torment deals 10% more damage and its mana cost is reduced by 10.
Burning Wrath - Wrath of Nether deals 30% more damage.
Dark Swiftness - Activating Absorb Darkness also gives you 15% increased movement speed for 4 seconds.
Level 7
Dark Resolve - At the end of the duration of Absorb Darkness, gain Invulnerable for 1.5 seconds.
Bring Forth Torment - Activating Wrath of Nether reduces the current cooldown of Torment by 2 seconds, and reduces its next mana cost by 5.
Unending Darkness - Reduces the cooldown of Absorb Darkness by 3 seconds.
Greater Voidform - Reduces damage taken from minions and mercenaries by 50% instead of 35%.
Level 10
Shadow Shield - Create a protection ward for 6 seconds, absorbing 20% of hero ability damage taken, and reflecting that much back to the enemy hero.
Netherflame Bolt - Hurl a bolt of burning nether at the target hero, dealing 100 damage on impact and an additional 80 damage over 4 seconds.
Level 13
Spell Shield - Upon taking Ability Damage, reduce that damage and further Ability Damage by 50% for 3 seconds. Can only trigger once every 30 seconds.
Improved Voidform - Enemy heroes that attack you have their Basic Attack speed slowed by 20%. (Can stack with Imposing Presence)
Mana Drain - Torment also drains up to 20 mana from the target.
Level 16
Void Fade - Activate Voidform to gain Stealth for 6 seconds. Cost: 50, Cooldown: 50s
Mortar Wrath - The range of Wrath of Nether is increased by 40%.
Greater Wrath - Wrath of Nether also burns enemies close to the target for 50% damage.
Imposing Presence - Enemies that attack you have their Attack Speed slowed by 40%.
Level 20
Demon Shield - Additionally, Shadow Shield reduces the duration of silences, stuns, slows, and roots against you by 75% during its duration.
Twisting Nether Bolt - Netherflame bolt deals 60% more damage, and its range is increased by 20%.
Hardened Shield - Activate to reduce damage taken by 24% for 4 seconds.
Storm Shield - Activate to give all nearby allied Heroes a Shield for 20% of their max Health for 3 seconds.
Heroes of the Storm Build Guides
Seems like a mediocre tank compared to leoric or johanna. Although kinda weak dps-wise, he can soak a ton of damage.
The only thing I'd change is void forms minion and merc damage. Since there is a talent which reduces minion and merc damage taken by 50%, I'd buff the resitance of the trait. Make it atleast 50%.
Otherwise, I have no complaints. Great job mate.