Diablo 4 Season 9: All Catalysts, Infusions, and Arcana Explained

Diablo 4 Season 9, titled Sins of the Horadrim, introduces a powerful new system called Horadric Spells. This "Borrowed Power" feature allows players to customize their magical abilities using three core components: Catalysts, Infusions, and Arcana. Each component plays a unique role in the spell's structure, enabling players to tailor their build to their Diablo 4 Items preferred playstyle and needs.

While the long-term meta is still unknown, Horadric Spells offer immense flexibility and strategic potential. Here's a full breakdown of every Catalyst, Infusion, and Arcana available in Season 9 of Diablo 4.

What Are Horadric Spells?

Horadric Spells are crafted using three magical components:

·Catalyst- The core spell effect and primary damage dealer.

·Infusion- Alters the spell's damage type and disables certain enemy affixes at Rank 5.

·Arcana- Adds supplemental bonuses; up to three can be socketed into each spell.

All Catalysts in Diablo 4 Season 9

Catalysts are the base of your spell. They determine how the spell is cast, its cooldown, Lucky Hit Chance, and scaling effects.

1. Celestial Surge (Astral Magic)

·Pulls enemies in, then strikes the area with 20 damaging starfalls.

·Rank 10: Stars fall periodically around you and always hit enemies.

·Cooldown: 15s (11.2s at Rank 20)

·Lucky Hit: 30%

2. Disintegrate (Arcane Magic)

·A beam connects you to an Arcane Conductor, dealing constant damage.

·Rank 10: Slows enemies in the beam by 50%.

·Cooldown: 10s (5.3s at Rank 20)

·Lucky Hit: 9%

3. Propulsion (Arcane Magic)

·Blasts enemies with a Mana explosion that knocks them back.

·Rank 10: Enemies hitting terrain trigger a secondary Mana Blast.

·Cooldown: 9s (4.3s at Rank 20)

·Lucky Hit: 15%

4. Cosmic Anomaly (Astral Magic)

·Spawns Anomalies that passively deal damage; activate them to implode.

·Rank 10: While at 5 Anomalies, you become Unstoppable, and the next implosion deals double damage.

·Spawn Rate: Every 5s

·Lucky Hit: 20%

5. Astral Pillar (Astral Magic)

·Creates a Taunting pillar that emits damage waves.

·Rank 10: Taunted enemies become Vulnerable and move faster.

·Cooldown: 7s

·Lucky Hit: 12%

All Infusions in Diablo 4 Season 9

Infusions determine the damage type of your Catalyst and provide utility bonuses.

1. Smoldering Ember (Fire)

·Adds Burning damage, 10% chance to ignite the ground.

·Rank 5: Disables Chilling Winds.

2. Nebulous Extract (Shadow)

·Applies a 5-10% damage debuff to enemies.

·Rank 5: Disables Summoner effects.

3. Glacial Nimbus (Cold)

·Applies Chill to enemies.

·Rank 5: Disables Explosive effects.

4. Corrosive Vapor (Poison)

·Adds DoT Poison damage over 4s.

·Rank 5: Disables Vampiric effects.

5. Thunderous Particle (Lightning)

·Damage arcs to nearby enemies.

·Rank 5: Disables Suppressor effects.

All Arcana in Diablo 4 Season 9

Arcana are supporting modifiers that enhance spellcasting. You can equip up to three per spell.

Magic Rarity

·Tendrilous Bundle- Chance to immobilize enemies.

·Tranquil Stone- Grants Unstoppable.

·Shifting Powder- Increases Movement Speed.

·Luminous Gem- Dazes enemies.

·Murky Essence- Grants Stealth.

·Invigorating Helix- Fortifies and heals you.

·Bottled Wind- Grants Barrier.

·Jagged Bramble- Adds thorn damage.

·Reactive Ooze- Boosts Resource Generation.

·Volatile Crystal- Grants Elemental Resistances.

Rare Rarity

·Gleaming Conduit- Increases Catalyst size.

·Fractured Core- Disables Damage Resistance auras but increases incoming damage.

·Sapping Crux- Applies Vulnerable.

·Potent Alloy- Breaks enemy Barriers and knocks them down.

·Siphoning Gizmo- Converts DoTs into instant burst damage.

Legendary Rarity

·Floaty Bubble- Grants teleportation/blink and Unhindered based on Catalyst.

·Nightmare Orb- Adds Fear and additional effects per Catalyst.

·Frigid Heart- Adds Freeze and Catalyst-specific enhancements.

Final Thoughts

Horadric Spells in Diablo 4 Season 9 promise a compelling layer of build customization. Whether you want to buy Diablo IV Items to min-max for Nightmare Dungeons or are just looking for flashy spell combos, the mix-and-match system of Catalyst, Infusion, and Arcana brings exciting new experimentation for every class.