Overmind by Tyranidus

PASSIVE: The Overmind takes the place of your Team's Core. The Overmind cannot move or die unless the Core dies. The Overmind has the same stats and attack profile as a normal Core. Instead of Spawning Swordsman, Mages, and Archers, the Overmind spawns Zerglings, Infested Terrans, and Hydralisks.

Cooldown 10 seconds. Activate to give Resistance 25% to Overmind Minions from Heroic Sources and 100% increased damage to Heroic Targets for 6 seocnds. The ability has an area of effect similar to Jaina's untalented Blizzard. The ability can be cast within the Range of any Overlord.

Cooldown 30 seconds. Activate to spawn 2 Larvae for each lane on the battlefield. After 5 second delay, 2 Zerglings are spawned from each Larva. The Zerglings go down each lane and behave just like all minions.

Cooldown 45 seconds. Activate to Spawn an Overlord (2 Charges). Can only have 2 Overlords at a time. Overlords can be controlled and move around the battlefield over terrain. Overlord movement is 20% slower then normal Heroic Speed. While lane minions are within the range of Overlords, the Overmind player can control the minions' movement and attack targets. Overlord Range is about 3/4 of Azmodan's Globe of Annihilation. HP: 800.

Cooldown 80 seconds. Activate to Spawn a Defiler. Can only have 1 Defiler at a time. HP 1200 Mana 200. The Defiler is always under the control of the Overmind even while outside the range of Overlords. While within range of an Overlord the Defiler's ability cooldowns recharge 25% faster. The Defiler has 4 activatable abilities on the 1, 2, 3, and 4 keys, Dark Swarm, Plague, Consume, and Burrow but no basic attack.
Dark Swarm: 100 Mana. Cooldown 10 seconds. Cast a Cloud that provides Parry to allies within the cloud and grants 25% Resistance to enemy basic abilities.
Plague: 150 Mana. Cooldown 12 seconds. Cast a Plague on a target dealing 500 damage over 6 seconds. The targets health cannot go below 100. Plague does not drain shields but will affect the hit points underneath regardless of shield strength.
Consume: Cooldown .5 seconds. Kill friendly lane minion to gain 50 mana.
Burrow: Cooldown 20 seconds. The Defiler gains Stealth. Movement and casting abilities will break stealth.

Cooldown 60 Seconds. Activate to Spawn a Brutalisk at the Core. Can only have 1 Brutalisk at a time. HP 1800. The Brutalisk is always under the control of the Overmind even while outside the range of Overlords. While within range of an Overlord the Brutalisk's ability cooldowns recharge 50% faster. The Brutalisk has 3 activateable abilities on the 1, 2, and 3 keys, Cleave, Deep Tunnel, and Burrow. Attack Damage 120 Attack Speed 1.
Cleave: Cooldown 3 seconds. In a frontal cone deal 200 damage.
Deep Tunnel: Cooldown 30 seconds. Channel for 4 seconds to teleport to a bush on the map. Channel 2 seconds to appear in that bush.
Burrow: Cooldown 20 seconds. The Brutalisk gains Stealth. Movement and casting abilities will break stealth.