Archimonde by Xero

Mac'Aree Memory:
Quest: Gather regeneration globes.
Reward: After gathering 10 regeneration globes, Desecrate and Demonic Smite costs 10 less mana.
Reward: After gathering 20 regeneration globes, Desecrate's and Demonic Smite's cooldowns are reduced by 1.5 seconds.

Purge the Weak:
Demonic Smite deals triple damage to minions aswell.

Everending Burning:
Desecration burns enemies hit for 10 (+4 per level) damage per second for 4 seconds.

Immolation Aura:
Infernals burn intensly every time they attack, dealing 20 (+4 per level) to all enemies around them.

Vulnerable Souls:
Vortex of Chaos deals 10% more damage every pulse.

Echo Swing:
Quest: Destroy 5 structures with Demonic Smite.
Reward: Demonic Smite occures once more 0.5 seconds later.

Focused Meteor:
The Infernal Meteor prioritizes structures over all else and deals double damage to them.

Hellfire:
Desecration explodes one more time 1.5 seconds after the second blast.

Archimonde's Shadow:
Reign of Chaos becomes global and Infernals gain an additional 20% of Archimonde's health.

Gavel of The Eredar:
Vortex of Chaos empowers Demonic Smite's damage by 0.1% every time it damages a minion, and 1% every time a Hero is damaged.

Citadel:
Mana: 150
Cooldown: 100 seconds

Target a destroyed keep or fort. After 3 seconds a Citadel of Fel with 6000 (+4% per level) health rises from it's debris. The Citadel can attack up to 3 enemies at once, dealing 150 (+4% per level) damage per second.

Finger of Death:
Mana: 100
Cooldown: 60 seconds

Mark an enemy structure or hero. Marked structures take 100% more damage, decaying over 4 seconds. Marked heroes take 1% of their maximum health every second for 5 seconds. Marked enemies who are hit by Archimonde's abilities have Finger of Death refreshed.

Spell Immunity:
Vortex of Chaos now also grants Archimonde 0.02% Spell Armor from minions and 0.2 Spell Armor from heroes permanently. This stacks up to 15.

Demonic Bash:
Demonic Smite stuns all enemies hit for 0.25 seconds. Duration increased to 1 second against enemy minions.

Dark Gateway:
Gateway can be cast 2 seconds faster and once every 30 seconds grants Archimonde 50 Spell Armor whilst channeling it and 2 seconds after it ends.

Demon Trade:
Desecrate's size is doubled, damage tripled against minions but deals 50% less damage to heroes.

Vision of Argus:
Reign of Chaos' meteor has a 50% larger radius and deals 50% additional damage over 3 seconds.

Energy Rush:
Successfully completing Vortex of Chaos refunds it's mana cost and increases mana regeneration by 2 for 10 seconds.

Antorus:
Citadels have 25 armor and enemy minions near it take 5% of their maximum health as damage every half a second whilst near the Citadel.

Inside Out:
Finger of death decays 5 seconds slower on structures and deals damage every 0.5 seconds to heroes.

Might of the Eredar Lord:
Quest: Gain 30% increased health and damage from Vortex of Chaos.
Reward: Vortex of Chaos' range increases by 25% each time it successfully damages a hero and also grants maximum mana now, at 0.01% per minion and 0.1% per hero.

Rain of Chaos:
Reign of Chaos summons two Infernal Meteors instead. Reduce the cooldown of Desecration and Demonic Smite by 1 second.

Dark Portal:
Gateway's duration is increased by 5 seconds and also creates a Gateway at the Hall of Storms, connecting the two.