Diablo 4: Get Horadric Knowledge in Season 9

Complete the Base Game Campaign: You must have finished the main story campaign of Diablo 4. This is a prerequisite for all seasonal content.

Create a Seasonal Character: Switch to the Seasonal Realm and create a new character specifically for Season 9.

Start the Seasonal Questline:

• Travel to Cerrigar, the capital of Scosglen.

• Locate and speak with Bryona, a new NPC found near the waypoint in Cerrigar (often located northwest of the waypoint).

• She will give you the introductory seasonal quest called «The Embers Yet Smolder.»

Complete the First Strongroom: Progress through «The Embers Yet Smolder» questline. It will guide you into your first Horadric Strongroom, where you must complete the challenge.

Access the Horadric Focus: After successfully clearing this initial Strongroom and debriefing with Bryona, the Horadric Focus will become available in Cerrigar. This is the seasonal reputation board where you can track your Horadric Knowledge progress and claim your earned rewards. The Horadric Focus is typically located right near Bryona.

Horadric Strongrooms (Primary Method):

• Objective: Enter Horadric Strongrooms (found within Nightmare Dungeons) and complete the Horadric Pillar Rituals within the 100-second time limit. This involves defeating waves of enemies.

• Horadric Attunement: The faster and more efficiently you clear the waves and objectives, the more Horadric Attunement you will accumulate. Higher Attunement directly translates to more Horadric Knowledge and better rewards from the Grand Horadric Cache at the end.

• Difficulty: Higher difficulty (World Tier) means stronger enemies, which generally yield more Horadric Knowledge. Torment difficulty offers the best chances for finding Nightmare Dungeons with Strongrooms and for maximizing your Knowledge gain.

• Guaranteed Strongrooms: Using Nightmare Dungeon Sigils with a «Horadric Strongroom» affix will guarantee that a Strongroom appears in that dungeon, making farming more consistent.

• Mummified Horadrim: Strongrooms are filled with Mummified Horadrim, and slaying these enemies contributes directly to your Horadric Knowledge.

Helltide Events:

• Efficiency: Helltides are an excellent and accessible way to farm Horadric Knowledge at any level, especially for those not yet fully geared for high-tier Nightmare Dungeons.

• Elite Density: Helltides are packed with Elite enemies, and killing Elites is a consistent source of Horadric Knowledge. The higher the density of Elites, the faster you’ll accrue Knowledge.

• Infernal Hordes: While not explicitly mentioned in the provided text as directly giving knowledge, other sources indicate that defeating Infernal Hordes (from Helltide events) can also provide Horadric Knowledge.

Nightmare Dungeons (General Elites & Bosses):

• Beyond the Strongrooms themselves, simply clearing Nightmare Dungeons and defeating Elite enemies and bosses within them will passively contribute to your Horadric Knowledge. Higher-tier Nightmare Dungeons naturally contain more powerful enemies.

Escalating Nightmares:

• While primarily known for dropping Escalation Sigils, these multi-stage Nightmare Dungeon challenges also involve intense combat against numerous powerful enemies, including the Exalted Astaroth boss. The high density of Elites and bosses within Escalating Nightmares makes them a strong source of Horadric Knowledge, particularly on higher Torment tiers.

Lair Bosses:

• Defeating Lair Bosses (like Grigoire, Varshan, etc.) also grants Horadric Knowledge, but only if you successfully open their respective Hoard chests upon their defeat.