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How To Obtain And Utilize Horadric Phials & Knowledge In Diablo 4 Season 9?

Jul 05, 2025 Author: D4gold

As you know, the seasonal power of Diablo 4 Season 9 is Horadric Spells. You can combine the three elements of Catalyst, Infusion and Arcana as needed to create your own unique power for Season 9.

At the same time, as a large and complete ARPG, every new gameplay launched by Diablo 4 actually hides an exclusive mechanism network behind it.

Take Horadric Spells as an example. In order to successfully utilize it to assist in combat, you also need to understand and obtain Horadric Phials & Knowledge. They belong to “Horadric” system, but their specific functions are different.

We have already introduced the combat functions of various Horadric Spells to you in other previous guides. What we want to tell you next is the relevant information about Horadric Phials and Horadric Knowledge.

How To Obtain And Utilize Horadric Phials & Knowledge In Diablo 4 Season 9?

What Are Horadric Phials?

As you complete seasonal quests or clear the new dungeon Horadric Strongrooms, you will unlock different Horadric Spells in addition to the basic Diablo 4 gold rewards.

All currently known Horadric Spells and how to unlock them are:

Catalysts

  • Astral Pillar: Earn by completing the seasonal quest Bearing the Weight of Ghosts.
  • Cosmic Anomaly: Earn by completing the seasonal quest The Unseeable Demands Their Gaze.
  • Propulsion: Earn by completing the seasonal quest To Walk Where Spirits Tread.

Infusions

  • Glacial Nimbus: Earn by completing the seasonal quest Keepers of the Glen.
  • Smoldering Ember: Earn by completing the seasonal quest To Walk Where Spirits Tread.
  • Nebulous Extract: Earn by completing the seasonal quest The Unseeable Demands Their Gaze.

Arcana

  • Bottled Wind: Earned by completing Horadric Strongrooms.
  • Gleaming Conduit: Earn by completing Horadric Strongrooms after acquiring Rare Arcana from Horadric Knowledge.
  • Floaty Bobble: Earn by completing Horadric Strongrooms after acquiring Legendary Arcana from Horadric Knowledge.

These spells have unique combat benefits, but as you progress through the game, both your character and your enemies will become more powerful, so Horadric Spells must be upgraded - and Horadric Phials are the only item that can do this.

Diablo 4 Season 9 Horadric Phials

How To Farm This Item?

To keep Horadric Spells available, most elite enemies or bosses in the world map will drop Horadric Phials after being defeated. But if you want to focus on farming, focusing on Helltides is your best choice in the early game.

Because Helltides contains multiple quests that drop Horadric Phials, and each is easy to do, you can maximize your farming efficiency in a short period of time. Specifically, they include:

  • Obtained by collecting Aberrant Cinders to open chests.
  • Complete Helltides quests in Tree of Whispers to collect Grim Favor in exchange for rewards.
  • Consume Baneful Hearts to summon and defeat Blood Maiden to obtain loot.
  • Increase the threat bar to summon stronger enemies to get more rewards.

However, as you enter the later stages of the game, Nightmare Dungeons and Horadric Strongrooms should be better sources of Horadric Phials. They will bring more high-rarity treasure chests through stronger enemies, and you can get more Phials after opening them.

In fact, all chests and caches you can get throughout Season 9 may bring Horadric Phials, including reward caches brought by increasing Horadric Knowledge.

How To Utilize Horadric Phials?

As you know, its main function is to upgrade Horadric Spells. It should be noted that as you complete more game content, you will also get more Horadric Spells, but not all of them are suitable for your class/builds/game habits.

So after getting a certain amount of Horadric Phials, don’t rush to upgrade by them. Instead, after determining your Season 9 battle builds, prioritize upgrading Horadric Spells that are most suitable for you to avoid waste.

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What Is Horadric Knowledge?

If Horadric Phials is the upgrade currency for Horadric Spells, then Horadric Knowledge is more like the reputation system of the entire Horadric mechanism. The increase of Horadric Knowledge can unlock more relevant rewards and seasonal tasks/stories for you in Season 9.

Compared with Horadric Phials, Knowledge is not a must-have for completing all seasonal content, but the rewards it provides can really help you. In particular, some reward caches will also have Horadric Phials.

Diablo 4 Season 9 Horadric Knowledge

How To Get It?

First of all, it should be noted that Horadric Knowledge does not exist in the game as loot, so no matter how you get it, you will not receive a notification when you get it, and you will only see relevant prompts when it is upgraded.

At present, the channels for obtaining Horadric Knowledge in Diablo 4 Season 9 are basically the same as farming Horadric Phials (you can farm at the same time), mainly including:

  • Complete Helltide events.
  • Redeem rewards by Grim Favor by completing quests related to Tree of Whispers in Helltides.

In addition, while you gain some Horadric Knowledge by completing the above, you can unlock more seasonal quests, which can also bring you Horadric Knowledge.

Another way to gain Horadric Knowledge is to consume Horadric Phials to exchange. But to be honest, this method is not very practical, because upgrading Horadric Spells is the key role of Phials, and the rewards brought by improving Knowledge are not very prominent in comparison.

That’s all for this time. I hope this information can help you better master Horadric Spells in Season 9 to solve those tricky quests or bosses as soon as possible. Have fun!

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