Void Portal (CoS Zone)  

Type	Rec Level	Rec Power (Heroic)	Common Mobs	Bosses	Quests	Dungeon Objectives	Vanquish
							Common Drops	Rare Drops
Void Portal					Accessible from: Arkadia
	57		Omega Brood Ravager Omega Brood Scorpion Omega Broodling	Brood Ripper (57)	The Void Portal	1990 1425   Kill Brood Ripper
Void Portal Boss Raid					Accessible from: Arkadia
	57	83144 (125126)	Defense Turret Omega Brood Ravager Omega Brood Scorpion Omega Broodling Pyro Mines	Mort'gok the Devourer (57)	[Vanquisher] Normal - Void Portal [Challenge] Heroic - Void Portal
Notes: The boss will spawn at 4:00 on the timer or when last gun is destroyed.

City of Steam Wikibase™ Zones

Each Boss Raid Challenge dungeon that you complete will grant rewards in addition to any items you find within it.

• Normal mode: Transmuter Orbs, Mastery Points, Expertise Points, Rare Materials Boxes, EXP
• Vanquish mode: EXP, Shillings, Mastery Points, Expertise Points. Note that EXP is higher than Normal mode to compensate for the loss of kill EXP that you do not get in this mode.
• Heroic mode: Rare Materials Boxes, Orange Material, Shillings

The amounts will vary by level and mode.

Heroic Mode

The trick here is to get OUT of the middle as fast as possible upon zone in. Run to one of the pillars and past it as far as you can go so that you get only one group if you cannot get out before they spawn. now move around the outside and clear the first wave.

Second wave is two layers of Sentry Guns. If you have a warder, let him chain-pull them outside. If not, try to make one of the outer layer the last to die.

Third wave (Boss Wave) appears at only three pillars. Move to between the broodlings and the empty pillar, clear the broodlings, then pull the boss out to where you are to avoid adds and mines.