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Diablo 4 Grigoire Boss: How To Unlock & Unique Rewards

We explain how you can unlock Grigoire, one of Diablo 4 Season 2's endgame bosses, and the loot drops for this powerful boss, including a unique cosmetic.
Diablo 4 Grigoire Boss: How To Unlock & Unique Rewards

Looking for all the details on the Diablo 4 Season 2 endgame boss Grigoire, the Galvanic Saint? Then don't worry, Nephalem, we've got you covered!

In this guide, we will explain how you can unlock the endgame boss Grigoire in Diablo 4 Season of Blood, including the requirements and summoning materials. We'll also share the first details of Grigoire's loot pool!

Update on 16 October 2023: We've updated this article with the Unique item pool that can drop once Grigoire is defeated.

Unlock Grigoire Endgame Boss in Diablo 4 S2

Grigoire Endgame Boss diablo 4 season 2 unlock living steel loot drops Demonbinder Mount Armor cosmetic items uniques uber
There are five endgame uber bosses for players to conquer in Diablo 4 Season 2! (Picture: Blizzard)

To unlock The Galvanic Saint, Grigoire, Diablo 4 players must jump through some hoops. Grigoire is, after all, an endgame boss meant to provide a tremendous challenge for the best rewards you can imagine.

Players must reach World Tier III at minimum (Grigoire is also available in World Tier IV difficulty). Then, Diablo 4 players need to gather Living Steel. How do you do that? Well, by opening Tortured Offerings in Helltides

So, to unlock the Grigoire endgame boss fight, use our Helltide spawn tracker guide and open as many Tortured Offerings as possible to collect Living Steel. Keep in mind that once you defeat Grigoire, you will need to repeat the process. Therefore, we suggest keeping any additional Living Steel you find. Blizzard explains:

You’ll need to meet the summoning conditions of a boss each time you want to fight it, so hold on to any additional summoning materials that you might acquire during your travels.

At the time of writing, the precise location of Grigoire in Diablo 4 Season 2 is unknown. We will update you once we know more.

Diablo 4 Grigoire Unique Rewards

Grigoire Endgame Boss diablo 4 season 2 unlock living steel loot drops Demonbinder Mount Armor cosmetic items uniques uber
Grigoire has a chance to drop an awesome Diablo 4 mount cosmetic, Demonbinder! (Picture: Blizzard)

With Diablo 4 Season 2, reward pools for endgame bosses, including Grigoire, have seen significant improvements. Grigoire can drop specific, exclusive, Unique items.

Each endgame boss also has a chance to drop a cosmetic item Unique to the specific encounter. Grigoire drops Demonbinder Mount Armor cosmetic, as per the image above. We can already imagine riding across Sanctuary with this awesome steed!

Blizzard has shared the details on the Unique item pool for Grigoire endgame boss, showcasing the Uniques you can target-farm in Diablo 4 Season of Blood by defeating this challenging foe.

Diablo 4 endgame boss item pool uniques uber Grigoire
These are the Unique items you can target-farm by slaying Grigoire in Diablo 4 Season 2. (Picture: Blizzard)

It is important to note that only the Echo of Duriel has a "significantly increased chance to drop Uber Uniques."

In case you've been stuck in the Burning Hells and missed it, check out the in-depth developer livestream about Diablo 4 Season 2 (Season of Blood), which dives into every piece of content you can expect, including the new endgame uber bosses!

So there you have it, the requirements to unlock and face the endgame boss Grigoire in Diablo 4 Season 2, and the unique cosmetic reward that can drop. If/when more information becomes available, we will endeavor to update this article. Good luck, Nephalem, you are going to need it!

For more Diablo 4, be sure to check out our dedicated section or some of our Guides & Tutorials just below:

Diablo 4 Season 2 Guides
Class Builds & Tier Lists


Tech Guides & Fixes
World, Maps & Locations
Diablo 4 Items & Slots
Legendary Aspects
Gameplay Systems
The Story, Lore & Characters
Diablo 4 Season Guides

Our section keeps growing, so check for new guides daily! Don't forget to pick up one of the Diablo 4 Editions and join the fight to save Sanctuary soon.