PoE Vial of Summoning Guide & Price
Vial of Summoning is a vial currency item that can be used to upgrade 
Mask of the Spirit Drinker to 
Mask of the Stitched Demon.
| Outcome | Amount | Ingredient | General Notes |
|---|---|---|---|
| Mask of the Stitched Demon |
1 | Mask of the Spirit Drinker |
Upgraded via the Altar of Sacrifice found in the Temple of Atzoatl’s Apex of Ascension room |
| 1 |  Vial of Summoning |
How to use Vial of Summoning?
Sacrifice this item on the Altar of Sacrifice along with Mask of the Spirit Drinker to transform it.
A Vial is a currency item used to upgrade unique items. It is used by placing it in the Altar of Sacrifice in a Level 3 Sacrificial Chamber (Apex of Ascension) with the required unique item.
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Apex of Ascension
Apex of Ascension is one of the rooms in the ancient Vaal Temple of Atzoatl that can be obtained by upgrading the Hall of Offerings.
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.
Vial of Summoning Farming
1. Slain monster in The Vaal Omnitect
It can only be obtained from The Vaal Omnitect. The Vaal Omnitect is the final boss of The Temple of Atzoatl.
The endboss of the temple is the Vaal Omnitect. It is located in the top chamber, the final temple room.
This room is accessible if you create a route to it during the incursions. You can create a route by killing the mobs until they drop a Stone of Passage, then going to the door you want to open with the Stone of Passage and and opening it. Alternatively, if you have access to the Explosives Room or a higher tier version during the temple instance, you can use the charges found inside it to open a path to the central chamber.
The Vaal Omnitect drops exclusive unique items and corrupted Rare items with an Incursion mod.
The Vaal Omnitect Drops
The Omnitect drops corrupted and rare items with an Incursion mod, as well as a unique item or vial.
| Unique items | Vials |
|---|---|
 Sacrificial Heart |
 Vial of Awakening |
 String of Servitude |
 Vial of Consequence |
 Soul Catcher |
 Vial of Dominance |
 Tempered Flesh |
 Vial of Fate |
 Tempered Spirit |
 Vial of Sacrifice |
 Tempered Mind |
Vial of Summoning |
 Vial of the Ghost |
|
 Vial of the Ritual |
|
 Vial of Transcendence |
2. Trade currency for it
You can exchange currency items with other players as well. The price of Vial of Summoning is 18
Chaos Orbs.
Vial of Summoning Price
Vial of Summoning Acquisition
| Drop level | 50 |
| Sell Price: | 1x  Scroll Fragment |
| Item class: | Stackable Currency |
| Metadata ID: | Metadata/Items/Currency/CurrencyIncursionVialHealing |
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