Azmodan changes: numbers courtesy of
https://www.invenglobal.com/articles...-and-abilities below will be a brief breakdown of the impact of the numbers differences outlined for ease of understanding.
Baseline:
Max health reduced by 10%
Opinion: Making him notably less survivable in teamfights is an interesting way to try to push him into being in more teamfights.
Globe of Annihilation / Black Pool: (Assuming Taste for Blood and Pride maxxed)
Classic: 525% damage over 30 seconds (100% per globe +75% for three pools)
New: 350% damage over 30 seconds (100% per globe +50% for one tide of sin)
33% overall damage lost
Classic: 3 globes with 3 pools = 4,000 damage to a single target
New: 3 globes with 1 tide = 2,700 damage to a single target
New Azmodan does 2/3rds the damage of current Azmodan at 10
Per single globe casts New Azmodan does 14% less damage than classic Azmodan when ulting.
Infernal Globe has been removed, taking 66% more time to reach its target in a Q build.
Max range reduced by 14% and Sieging Wrath range bonus removed.
Battleborn removed.
Opinion: With an earlier warning circle and the fact that infernal globe has been removed, landing a Q on anything except CCed targets will be near impossible.
To give a near direct comparison, a fully stacked New Azmodan with Pride does 200 more damage than a Sieging Wrath Azmodan over 30 seconds. An increase of 9% damage only at max Annihilation stacks and Pride taken at level 20. At all points before level 20 or if you only have 399 Annihilation stacks New Azmodan's damage is reduced by 100 compared to Sieging Wrath.
General of Hell:
Cooldown doubled to 60 seconds.
Duration reduced by 33% to 20 seconds.
No longer provides minion damage buff aura.
Minion damage buff aura can be returned at the cost of a level 13 talent.
Demonic smite is now baseline, but only procs twice per cast instead of four times and no longer procs on mercs.
Bound Minion talent removed.
Opinion: General of Hell has been effectively removed of any meaningful impact it had previously. Azmodan's ability to push globally in a notable way while still participating with his team has effectively been removed thanks to base Q range being smaller, Sieging Wrath being removed, and General of hell given a 33% up time compared to its previous and the effective removal of its damage aura.
Summon Demon Warrior:
Health increased by 6%
2ed stack removed, reducing the amount of "demon warrior HP" you can summon at one time by 340 baseline and more than halving the amount of damage Azmodan can inflict with demon warriors in early duels or when pushing lanes.
Opinion: It is impressive to take one of the worst skills in the game and make it worse.
All Shall Burn:
Cooldown increased by 33%
Range decreased by 14%
Infinite channel removed, max channel 2.5%
Bonus damage to structures removed.
Opinion: Aside from the drama of "lazors being removed!" nerfing All Shall Burn in this way does actually, effectively, remove one of Azmodan's strongest tools when it comes to pushing down undefended structures.
Without the tool of All Shall Burn to ramp up his damage against buildings Azmodan is actually one of the least equipped heros to damage structures.
Demonic Invasion:
Health increased by 100%, but loses 13% hp per second.
Summons have pre-buff health after 4 seconds.
8 seconds max duration, down from infinite.
Attack damage decreased by 20%
Cooldown reduced by 10 seconds.
Explosion is now baseline.
Opinion: In attempting to make Demonic Invasion have greater teamfight utility they have removed one of its strongest advantages, being able to pop what is effectively a bruiser camp into a lane of choice when desired to help secure pushes or depush a lane automatically and they have made it effective at nothing. An Azmodan that wanted to focus on teamfight contribution would have taken Black Pool anyway and that does not change with the patch.
Additional note: Azmodan's Q at 500 stacks does less baseline damage than Kael'Thas Q untalented with a significantly greater cooldown. Azmodan is not as effective as a pure damage dealing mage, this is why he's always had his split pushing to supplement what he does not bring to a teamfight.
Making him significantly worse at teamfights in every conceivable way and removing his ability to effectively split push while still being with his team will essentially delete him from the game. He will be the worst character in HotS. Period.