In this Diablo 4 Horadric Spells guide for Season 9, we break down everything you need to know about Catalysts, Infusions, Arcana, and Horadric Jewels. Diablo IV Season 9 introduces the Horadric Spellcraft system — a powerful new way to customize spells and enhance your build. Whether you’re chasing Rare or Legendary Arcana, socketing rare Jewels, or upgrading your spell combos, our guide covers it all.
4.9What is Horadric Powers in Diablo 4
At the core of Diablo 4 Season 9 gameplay is the Horadric Powers system — a new form of “borrowed power” that is highly customizable. Similar to how Season 1 had Malignant Hearts or Season 2 had Vampiric Powers, Season 9 introduces Horadric Spellcraft, which allows you to build your own custom spells. This system is complex but rewarding, and it’s exclusively available during Season 9’s timeframe.
In a word, Horadric Powers are created using Catalysts, which are certain abilities, Infusions — their modifiers, which change the element of the damage, and Arcana — extra skill modifiers that provide additional effects dor your custom skills.
Here’s a list of key features linked to Diablo IV Horadric Powers:
- Horadric Spell Catalysts
- Infusions
- Arcana
- Horadric Jewels
While Diablo 4 Season 9 is on its way, you can start preparing yourself for new adventures. Think about your leveling route and a class you’d like to play in Season 9. And remember, if you need any assistance to speed up your Power Leveling, our team is always there for you.
Diablo 4 Horadric Spell Catalysts
A Catalyst is the foundation of your Diablo IV Horadric spell, giving it its form and function. You can bind a Catalyst to any of your skills (for example, attaching a spell effect to your Rogue’s Dash or a Sorcerer’s Teleport). Also, Catalysts receive a bonus at Rank 10 and have 20 Ranks total.
The Catalyst determines the core behavior of the spell (e.g., an area-of-effect burst, a summon, a defensive buff, etc.). By using the spell and defeating enemies, you’ll level up the Catalyst, increasing its power and reducing its cooldown. There are multiple Catalysts to discover, including examples like Celestial Surge (which calls down stars to strike enemies), as shown by the developers.
📌 Note: Catalysts essentially act as an extension of your class skills, and you’re free to slot them into whichever ability makes sense for your build.
Diablo 4 All Horadric Catalysts
There are 5 Catalysts in Diablo IV: Celestial Surge, Disintegrate, Propulsion, Cosmic Anomaly, and Astral Pillar. Each of them has 20 Ranks in total. At Rank 10, Catalysts receive a bonus.
| Spell | Description | Cooldown | Lucky Hit Chance | Rank 10 Effect |
|---|---|---|---|---|
| Astral Pillar (Astral Magic) | Shapes an Ethereal Column that taunts for 3s. Piercing waves deal damage until replaced or moved away. | 7 seconds | 12% | Taunted enemies become Vulnerable and move faster. |
| Celestial Surge (Astral Magic) | Awakens a Rune that pulls enemies in and rains 20 star strikes randomly. | 15s (11.2s at Rank 20) | 30% | Stars periodically fall around you and are guaranteed to hit a nearby enemy. |
| Cosmic Anomaly (Astral Magic) | Passive: Emits particles from 5 Anomalies for 4s damage. Active: Implodes for burst damage. | Spawns every 5s | 20% | At 5 Anomalies, you’re Unstoppable and the next implosion deals double damage. |
| Disintegrate (Arcane Magic) | Forms a beam between you and a Conductor dealing steady damage for 8s. | 10s (5.3s at Rank 20) | 9% | Enemies within the beam are Slowed by 50%. |
| Propulsion (Arcane Magic) | Blasts enemies with Mana, knocking them back. Collisions deal extra damage. | 9s (4.3s at Rank 20) | 15% | Gargantuan knockback; enemies slammed into terrain trigger a Lesser Mana Blast (once). |
Diablo 4 Horadric Infusions
An Infusion is a Diablo IV item that modifies your Horadric spell’s elemental damage type or behavior. For instance, an Infusion could change your Catalyst’s damage to Fire and add a special effect – one example given is Smoldering Ember, which makes your spell destroy enemy structures like barricades or chains in addition to dealing damage.
Infusions let you tailor the spell’s damage type (Fire, Frost, Lightning, etc.) to synergize with your build or to exploit monster weaknesses. Think of Infusions as elemental augments that alter how your Horadric spell interacts with enemies and the environment.
In fact, Infusions serve as a reliable tool of build enhancement, as they allow you to tailor your spells to your specific needs and playstyle. To ensure that your new Horadric Powers also suit your build, ask our team for a Build Check and ensure that your build is flawless.
Diablo 4 All Horadric Infusions
Here we have gathered a full list of all Horadric Infusions in Diablo 4 Season 9:
| Catalyst | Element Type | Bonus Effect | Damage Bonus Scaling | Rank 5 Perk |
|---|---|---|---|---|
| Corrosive Vapor | Poison / Poisoning | Deals 150% Poisoning damage over 4s (1x per 3s per enemy) | Poison Damage Bonus equals your highest Damage Type Bonus | Deactivates monster Vampiric effects for 5s |
| Glacial Nimbus | Cold / Frostbiting | Chills enemies by 15–25% (1x per second per enemy) | Cold Damage Bonus equals your highest Damage Type Bonus | Deactivates monster Explosive effects for 5s |
| Nebulous Extract | Shadow / Corrupting | Enemies hit deal 5–10% less damage for 7s | Shadow Damage Bonus equals your highest Damage Type Bonus | Deactivates monster Summoner effects for 5s |
| Smoldering Ember | Fire / Burning | Destroys structures, 10% chance to ignite ground for 150% Burning damage over 5s | Fire Damage Bonus equals your highest Damage Type Bonus | Deactivates monster Chilling Winds effects for 5s |
| Thunderous Particle | Lightning / Sparking | Arcs 150% Lightning damage to nearby enemy (1x per 3s per enemy) | Lightning Damage Bonus equals your highest Damage Type Bonus | Deactivates monster Suppressor effects for 5s |
Diablo 4 Horadric Arcana
Diablo IV Arcana are tuning or enhancement items for Horadric powers, and you can socket up to 3 Arcana into a Horadric spell for additional effects. Arcana drop from seasonal content. It provides subtle bonuses or mechanics tweaks to your spell. For example, one Arcana called the Tranquil Stone grants Unstoppable to Necromancers (removing crowd control effects) when using their Horadric spell, helping to overcome a class weakness.
There are 3 types of Arcana: Magic, Rare, and Legendary. They are:
- Magic Arcana: Bottled Wind, Invigorating Helix, Jagged Bramble, Luminous Gem, Murky Essence, Reactive Ooze, Shifting Powder, Tendrilous Bundle, Tranquil Stone, and Volatile Crystal.
- Rare Arcana: Fractured Core, Gleaming Conduit, Potent Alloy, Sapping Crux, and Siphoning Gizmo.
- Legendary Arcana: Bloody Charm, Floating Bobble, Frigid Heart, Nightmare Orb, and Pressurized Steam.
You can mix and match Arcana to create unique combinations. There are 20 Arcana in total. The community, though, will surely find the meta combos within days after the launch.
📌 Note: Arcana basically let you customize the spell to fit your playstyle — it can grant you extra survivability, more AoE, or allow you to counteract a drawback of your class.
Diablo 4 Magic Arcana
Magic Arcana is the first “level” of Arcana. There are 10 of them available in Diablo IV Season 9:
| Arcana | Effect | Scaling per Rank |
|---|---|---|
| Bottled Wind | Invoking your Catalyst grants a Barrier equal to 30% of your Max Life for 4s. Recharges essence after it fades. | +4% Barrier strength per rank |
| Invigorating Helix | Once per enemy every 5s, Catalyst damage Fortifies and Heals you for 5% Max Life. | +1% healing per rank |
| Jagged Bramble | Lucky Hit: Catalyst damage has up to a 50% chance to deal 130% of your Thorns damage. | +20% Thorns damage per rank |
| Luminous Gem | Your Catalyst Dazes enemies it hits for 2 seconds. | +1s Daze duration per rank |
| Murky Essence | Invoking your Catalyst grants Stealth for 2s when activated. | +0.4s Stealth duration per rank |
| Reactive Ooze | After Catalyst activates, gain 5% Max Resource Generation per second for 10s. | +3% Resource Generation per rank |
| Shifting Powder | Your Catalyst increases Movement Speed by 30% during effect + 5s after. | +8% Movement Speed per rank |
| Tendrilous Bundle | Lucky Hit: Catalyst damage has up to a 35% chance to Immobilize enemies for 5s. | +5% Immobilize chance per rank |
| Tranquil Stone | Invoking your Catalyst grants Unstoppable for 3s. | +0.4s Unstoppable duration per rank |
| Volatile Crystal | After Catalyst activates, gain 10% Resistance and Max Resistance to your Infusion’s Element for 10s. | +2% Resistance per rank |
Diablo 4 Rare Arcana
The second type of available Arcana is Rare. You can find 5 Rare Arcana in Diablo 4 Season 9:
| Arcana | Effect | Scaling per Rank |
|---|---|---|
| Fractured Core | Your Catalyst disables monster Damage Resistance Aura effects for 2.5 seconds, but you take +10% stacking damage during that time. | +0.5s duration per rank |
| Gleaming Conduit | The area of effect of your Catalyst is increased by 10%. | +8% effect size per rank |
| Potent Alloy | Your Catalyst breaks enemy Barriers and Knocks them Down for 1.0 seconds after. | +0.8s Knock Down duration per rank |
| Sapping Crux | Your Catalyst applies Vulnerable to enemies for 3 seconds. | +1s Vulnerable duration per rank |
| Siphoning Gizmo | Lucky Hit: Catalyst damage has up to a 40% chance to consume DoT effects and deal 100% of their damage instantly. | +8% DoT damage per rank |
Diablo 4 Legendary Arcana
Finally, Legendary Arcana are the strongest Arcana in Diablo IV Season 9. There are also 5 of them available, and they differ from the rest as they have Catalyst Effects:
- Bloody Charm
- Floaty Bobble
- Frigid Heart
- Nightmare Orb
- Pressurized Steam
Bloody Charm
Bloody Charm — Grants Execute effect on non-Boss enemies with 10% or less Life (+2% per rank).
Catalyst Effects:
- Astral Pillar: Launches extra waves to Execute.
- Celestial Surge: Executes on impact; reduces cooldowns by 2s.
- Cosmic Anomaly: Implosion Executes; boosts Attack Speed by 20%.
- Disintegrate: Executes enemies instantly; threshold doubled for non-Elites.
- Propulsion: Executes on blast; resets if successful.
Floaty Bobble
Floaty Bobble — Adds Blink and grants Unhindered for 2.0 seconds (+0.4 per rank).
Catalyst Effects:
- Astral Pillar: Blinks to focus, flare drops behind.
- Celestial Surge: Blinks to rune center.
- Cosmic Anomaly: Blinks to implosion, cleanses negatives.
- Disintegrate: Blinks to target; Unhindered during and after.
- Propulsion: Blinks to center or Knocked Back enemies.
Frigid Heart
Frigid Heart — Freezes enemies for 3.0 seconds (+0.4 per rank).
Catalyst Effects:
- Astral Pillar: Freeze on flare removal; boosts Lucky Hit Chance.
- Celestial Surge: Freezes and spawns second rune.
- Cosmic Anomaly: 20% chance to Freeze instead of imploding.
- Disintegrate: Freezes post-Evade; grants 15% Dodge.
- Propulsion: Freezes on second terrain collision.
Nightmare Orb
Nightmare Orb — Applies Fear for 4.0 seconds (+0.4 per rank).
Catalyst Effects:
- Astral Pillar: Every 9th wave Fears; Flare Taunts Feared enemies.
- Celestial Surge: Fears enemies; may summon extra star.
- Cosmic Anomaly: Fears and Slows enemies by 80%.
- Disintegrate: Fears; kills restore 5% HP and Resource.
- Propulsion: Fears enemies; creates Lesser Mana Blast after.
Pressurized Steam
Pressurized Steam — Stuns for 1.0 seconds (+0.4 per rank).
Catalyst Effects:
- Astral Pillar: 30% chance to Stun; Overpowers Stunned foes.
- Celestial Surge: Stars Stun and Crit on stunned targets.
- Cosmic Anomaly: Particles Stun with 25% chance of instant damage.
- Disintegrate: Stuns each target once; +100% Boss Stagger.
- Propulsion: Stuns on terrain slam; foes may miss next 2 attacks.
Diablo 4 Horadric Jewels
To further enhance your custom spells, Season 9 introduces Diablo IV Horadric Jewels — special items you can craft and socket into your gear for boosting Horadric powers. This is reminiscent of the Occult Gems from Season 7, providing another layer of progression.
You’ll collect Horadric Tomes from the new Strongrooms once you reach Torment difficulty, along with materials like Horadric Phials and Gem Fragments. With these, you can craft Horadric Jewels and socket them to amplify your Horadric spell effects or stats.
Diablo 4 All Horadric Jewels
In total, there are 15 different Horadric Jewels to find or craft. Therefore, you’ll have a broad range of enhancements. Jewels might boost your damage, improve defenses, or offer unique perks related to the Horadric powers, so they’re well worth chasing if you want to max out your seasonal character’s potential.
| Jewel | Effect |
|---|---|
| Seal of Control | With 2+ Control Arcana equipped, gain +45% Control Duration and +30% Lucky Hit Chance. |
| Seal of Power | With 2+ Power Arcana equipped, gain +25% Movement Speed and +15% Critical Strike Chance. |
| Seal of Denial | With 2+ Denial Arcana equipped, gain +30% Barrier, Fortify, and Thorns effects. |
| Horadric Crest | Gain +5% Damage Reduction and +1% Maximum Resistance to All Elements per unique School Arcana equipped. |
| Reverie Horn | After injuring or killing an enemy, Summons become empowered for 4 seconds, growing larger and dealing +30% damage. |
| Scornful Light | You deal +20% and take +10% more Elemental damage. |
| Tyrant Bane | DoT damage increases the target’s DoT vulnerability from you by +0.33% permanently. |
| Liminal Echo | Prevents fatal damage, invokes Propulsion, and grants 3 seconds of Invulnerability (75s cooldown). |
| Idol From Below | Gain +6% primary stat, +8% max life, and always remain Unhindered. Attracts deadly Jewel Guardians across Sanctuary. |
| Myriad Stone | After casting a Catalytic Ultimate, gain +30% Attack Speed for 10 seconds. |
| Spark of Creation | Gain 10 Primary Resource after casting your Catalytic Skill. |
| Luminate Eye | Reduces Catalytic Skill cooldown by +25%. |
| Brilliant Sigil | Your Infusions are +150% more potent. |
| Elemental Brand | Your Catalytic Skill deals 33% of your Infusion’s element as damage over 3 seconds. Lucky Hit: 33% chance to trigger secondary effect. |
| The Starflux | Your Catalysts deal +100% damage but inherit Infusions randomly due to unstable Horadric Spellcraft. |
Diablo 4 How to Upgrade Horadric Spells
Being a centerpiece of the season, Diablo IV Horadric Powers will have an upgrade route. Improving Horadric Spells will cost a scaling amount of the seasonal upgrade currency — Horadric Phial. We’ve crafted a step-by-step guide on how to upgrade your Horadric Spells in Diablo 4 Season 9:
Step 1: Open the Horadric Spells Tab.
- Press the Character Pane key (default: C on PC).
- Navigate to the Horadric Spells tab, located to the left of your inventory.
Step 2: Select the Component to Upgrade.
- Within the Horadric Spells interface, you’ll see your equipped Catalyst, Infusion, and up to three Arcana.
- Hover over the component you wish to upgrade.
Step 3: Check Upgrade Requirements.
- Each component requires a specific amount of seasonal upgrade currency to level up.
- The cost scales with the current level of the component.
Step 4: Acquire Seasonal Upgrade Currency.
- Obtain Horadric Tomes and other upgrade materials by:
- Completing Horadric Strongrooms, hidden micro-dungeons within Nightmare Dungeons.
- Defeating Jewel Guardians, elite enemies that drop crafting materials.
- Participating in other seasonal activities and events.
Step 5: Upgrade the Component.
- Once you have the required materials:
- Click on the component you wish to upgrade.
- Confirm the upgrade to increase its rank.
- Higher ranks enhance the component’s effects and may unlock additional bonuses.
Step 6: Experiment with Different Combinations.
- Mix and match different Catalysts, Infusions, and Arcana to create powerful spell combinations tailored to your playstyle.
📌 Note: Some combinations may synergize better with specific builds or classes.
4.9That wraps up our Diablo 4 Season 9 Horadric Spells guide. We’ve covered every Diablo IV Catalyst, Infusion, Arcana tier, and Jewel you’ll need to experiment with powerful custom spells. As you dive deeper into the season, use our guide to optimize your build and unlock your class’s full potential. For the best Horadric Spellcraft combos and upgrade routes, keep checking back as the meta evolves.
