4. Activating the Altar
Once you have gathered the required materials, you can go ahead and Diablo 4 Items activate the summoning altar in the Ancient's Seat lair. Here’s the process:

Interact with the altar once you’ve collected the necessary materials.
If you're summoning Tormented Lord Zir, you will need three Exquisite Blood and one Stygian Stone.
If you’re summoning standard Lord Zir, one Exquisite Blood is sufficient.
Once the ritual is complete, Lord Zir will emerge, and the fight will begin!

Tips for Preparing to Fight Lord Zir
Gathering Materials: Make sure you gather Exquisite Blood during your normal gameplay. Focus on Elite farming areas, Helltide events, and World Bosses to increase your chances of obtaining this material.
Prepare for Tormented Variant: If you intend to face the Tormented Lord Zir (the more challenging Level 200 variant), ensure you have gathered Stygian Stones in advance. This version of Lord Zir will have enhanced mechanics, making it a more difficult fight.
Party Setup: If you’re farming Lord Zir with a party, make sure everyone contributes by gathering materials for the summoning process. Coordinate on the summoning to avoid waste and ensure everyone is prepared.
Summary: How to Summon Lord Zir
Location: The Darkened Way Dungeon in Kehjistan.
Required Materials:
Exquisite Blood (1 for normal, 3 for Tormented).
Stygian Stone (1 for Tormented Lord Zir).
Summoning Process: Interact with the Ancient's Seat lair altar after obtaining the materials to initiate the fight.
Once you’ve summoned Lord Zir, make sure you are ready for the intense battle that follows. His loot drops can include Mythic Uniques and high-level Legendary items, making him one of Diablo IV Items for sale the most efficient bosses to farm in Diablo 4.

Good luck, and may your farming efforts be fruitful!