Apex of Ascension

Apex of Ascension is one of the level 3 incursion rooms of the Temple of Atzoatl that can be obtained by upgrading the Hall of Offerings during temporal incursion.

The room contains an Altar of Sacrifice which provides the player with one of two different functions:

• Sacrifice a unique item for another random unique item of the same item class, including items not ordinarily obtainable.
• Transforms unique items found exclusively in the Temple of Atzoatl.

The altar may only be used once per temple.

Sacrifice a unique item for another unique item

League mechanics: Incursion. While in an incursion, the player can open passages and kill architects to change or upgrade the room, which affects the Temple's layout in the future. After 11 incursions, the Temple in present time can be raided for loot and special altars which modify items.

PoE 3.20: Ancient Orbs and the Altar of Sacrifice in the Temple of Atzoatl can no longer be used on Unique Jewels, Flasks or Maps.

Vials are currency items used to upgrade certain unique items to their more powerful versions. They are used by placing one in the Altar of Sacrifice in Apex of Ascension (a level 3 room that upgraded from Sacrificial Chamber and Hall of Offerings) along with the required unique item. Vials can only be obtained from The Vaal Omnitect.

Vial	Original item	Upgraded item
Vial of Awakening	Apep's Slumber	Apep's Supremacy
Vial of Consequence	Coward's Chains	Coward's Legacy
Vial of Dominance	Architect's Hand	Slavedriver's Hand
Vial of Fate	Story of the Vaal	Fate of the Vaal
Vial of Summoning	Mask of the Spirit Drinker	Mask of the Stitched Demon
Vial of the Ritual	Dance of the Offered	Omeyocan
Vial of Transcendence	Tempered Flesh	Transcendent Flesh
Vial of Transcendence	Tempered Spirit	Transcendent Spirit
Vial of Transcendence	Tempered Mind	Transcendent Mind
Vial of Sacrifice	Sacrificial Heart	Zerphi's Heart
Vial of the Ghost	Soul Catcher	Soul Ripper

Corrupted unique items can be used on the altar for a random non-corrupted unique item.

Exmaple: Vial of Summoning + Mask of the Spirit Drinker = Mask of the Stitched Demon