"Everyone in your Raid Group must understand how this phase works. While one party fights the Invincible Light Luke in Solium Machina, the second party must clear other dungeons—Altars of Light and Darkness, etc.—to cancel Luke's Invincibility for the main party. After Light Luke is defeated, the parties have to switch roles so that the main party (one that fought Luke) clears the Altars of Darkness and Wisdom for the other party while it fights Dark Luke."

Progression

You must clear pre-requisite dungeons in order to enter the next dungeon.

• Light Route
  Entrance to the Altar of Light → Altar of Light → Alter of Power → Sanctuary of Light → Solium Machina: Lumen
• Dark Route
  Entrance to the Altar of Darkness → Altar of Darkness → Altar of Wisdom → Sanctuary of Darkness → Solium Machina: Khaligo
  - Once you have chosen a route, you cannot enter the dungeons in the other route.
  - Sanctuary of Transcendence's dungeon binding system do not apply to 'Energy Control Room' and 'Energy Storage' dungeons.

• Entering Sanctuary of Transcendence
  - Dungeons are shown by route.                            
  - When you clear a dungeon, the next dungeon will become available.

• When you clear Altar of Light Entrance and Altar of Darkness Entrance, shows the Energy Control Room and the dungeons that are affected by it.

• Energy Control Room
  - Level 120 Iron Beast and Metal Gear Canaps appear.
  - The Energy Control Room is unlocked when at least one of the following dungeons are opened: Altars of Light/Darkness/Power/Wisdom.
  - While the Energy Control Room is opened, the following effects are applied to the Altars of Light/Darkness/Power/Wisdom.
    1) Characters: Decreased Physical/Magical Atk.
    2) Monsters: Increased Atk./Def./Movement Speed and Boss HP regen
  - The Energy Control Room is regenerated after a while when it's cleared.
    The more objects you destroy in the Palace of Creation, the longer it takes for this dungeon to regenerate.

• When you clear Altar of Power and Altar of Wisdom, shows Sanctuary of Light and Sanctuary of Darkness.

• Sanctuary of Light
  Level 120 Red Clown and Fortuneteller Rosaura appear.
• Sanctuary of Darkness
  Level 120 Quatro Manus Mark-II and Grieving Buffon appear.

• When you enter Solium Machina: Lumen/Khaligo, Energy Repository is shown on the status board

Energy Repository

• LV.120 Yashin the Moonlight Walker and Evil Sword Veara appear.
• Find Luke in Solium Machina: Lumen/Khaligo, and the Energy Repository is unlocked.
• When this dungeon is unlocked, the following effects are applied to Solium Machina: Lumen/Khaligo.
  - Characters: Decreased Physical/Magical Atk.
  - Monsters: Increased Atk./Def./Movement Speed/HP regen
• You must clear this dungeon within its time limit, or it will explode and cause you to fail in clearing Solium Machina: Lumen/Khaligo.
• Luke in Solium Machina: Lumen/Khaligo loses a small amount of HP every time you clear the Energy Repository.

Phase 2 Dungeon Characteristics

Altar of Light (Lv. 120)
The Altar of Light is filled with light energy. Luke's creations that arrive in this altar sense the blessing of light reaching deep inside them. This energy that has been accumulated for millennia travels through the wire and pipes inside them, filling them with luminous life.
You can enter this dungeon at the beginning of Phase 2. - The Altar of Darkness may open instead. - Clear the Entrance to the Altar of Light/Darkness(Both) to unlock the Altar of Light.
Monsters: Oblivious Aslan and Light Idol Horus

Altar of Darkness (Lv. 120)
Luke's creations that received souls go through the Altar of Power and Wisdom to be reborn as strong warriors. At the Altar of Power, they receive a stainless steel body and undying stamina.
Clear the Entrance to the Altar of Light/Darkness(Both) to unlock the Altar of Darkness.
Monsters: Hatred Veil, Large-armed Prince Golgotha, Iron-armed Princess Kalbarri

Altar of Power (Lv. 120)
Luke's creations that received souls go through the Altar of Power and Wisdom to be reborn as strong warriors. At the Altar of Power, they receive a stainless steel body and undying stamina.
Clear the Entrance to the Altar of Light/Darkness(Both) to unlock the Altar of Darkness.
Monsters: Hatred Veil, Large-armed Prince Golgotha, Iron-armed Princess Kalbarri

Altar of Wisdom (Lv. 120)
Luke's creations that received souls go through the Altar of Power and Wisdom to be reborn as strong warriors. At the Altar of Wisdom, they receive superb intelligence and extreme ruthlessness.
Clear the the Altar of Darkness to unlock the Altar of Wisdom.
Monsters: Dark Idol Anubis and Evil Sword Veara

Solium Machina: Lumen (Lv. 120)
Luke resides here, alternately absorbing the powers of light and darkness to retrieve the memory and physical strength that he enjoyed in his prime.
Solium Machina: Lumen is unlocked when the Sanctuary of Light/Darkness(Both) are cleared.  If the other party clears the Energy Repository, then Luke in Solium Machina: Lumen will be weakened.
Monster: Constructor Luke - Light

Solium Machina: Khaligo (Lv. 120)
Luke resides here, alternately absorbing the powers of light and darkness to retrieve the memory and physical strength that he enjoyed in his prime.
Solium Machina: Khaligo is unlocked when the Solium Machina: Lumen is cleared. If the other party clears the Energy Repository, then Luke in Solium Machina: Khaligo will be weakened.
Monster: Constructor Luke - Darkness