Yogg-Saron is an old god found in Ulduar in Northrend. It is known for manipulating the minds of those that face him and summoning tentacles to fight for him.

Yogg-Saron's main role in the nexus is to summon creatures to fight for him and to then manipulate them or the enemy heroes to win dominance on the field of battle.

Faceless Ones are spawned with each wave of minions, one on each lane. Faceless Ones have as much health as a catapult or slightly higher and fight in melee combat. When they die they give 1/6 th of a heroe's experience.

Yogg-Saron's abilities make use of Faceless Ones or Tentacles and can only be cast if Faceless Ones are alive. There will therefore be talents associated in creating more Faceless Ones apart from those summoned normally.

Manipulation (E) is used to control a Faceless One. Tentacles (Q) are summoned in the vicinity of a Faceless One, that is, you must first mouse over 1 Faceless One on any lane and then cast the spell. 3 Tentacles are summoned, 2 to the adjacent sides of the Faceless One and 1 behind. These have a short range (melee) and attack anything close to them.

Deafening Roar (W) is used like Q by mousing over a Faceless One or a Tentacle and casting the spell. Any enemies in a circular area around your target are damaged and silenced for 1 second.

Manipulating a Faceless One gives you full control of that creature much like Abathur using Monstrosity.

Faceless Ones have 3 abilities, 1 of which is a passive.

The passive ability, Lunatic Gaze, allows the Faceless One to survive longer in combat by creating Insanity in the enemies that attack it. If an enemy attacks the Faceless One in quick succession Insanity quickly builds up and the enemy heroe will then do 0 dmg to it. The stacks fall off 1 by 1 and therefore the enemy heroe can and should stop attacking then begin again thereafter.

Empowering Shadows (Q) is used by the Faceless One to enforce pushing by healing friendly minions and tentacles. This works much like a healing ward (the Faceless One being a mobile ward) but is slightly stronger. It also boosts the damage of tentacles for extra pushing power.

Mind Blast (W) is the only consistent and persistent ability Yogg-Saron has in his possession to poke enemy champions and is used by a Faceless One by directly targeting an enemy champion.

Dark Reflections is a heroic ability that Yogg-Saron can use and is only accessible when manipulating a Faceless One.

Using Dark Reflections is like using Abathur's cloning ultimate but this ability must be used form a Faceless One on an Enemy champion, becoming a copy of him. Unlike Abathur, this "clone" does not gain any additional damage but will however reduce the damage and movement speed of enemy heroes it attacks (any heroe not just the one it is a reflection of).

Mind Games is the other ultimate. This ultimate affects BOTH allies and enemies. It produces a shroud of darkness around each heroe (basically moving them out of the map into a new "instance" and creating a shadow copy of the heroes. This shadow ill fight and use basic abilities against the hero for 5 seconds damaging them. It has 50% hp as the hero and can be killed. If killed, Dark Reflections goes away for that hero. If not killed, all heroes will go out of Dark Reflection after 5 seconds.

This spells could be used as a pushing power spell since Yogg-Saron is not affected by it. When all enemy and ally heroes disappear (or become invulnerable - depends on coding) from the map Yogg-Saron has 5 seconds to push buildings or take objectives.

Faceless Ones can be used to take objectives.