Diablo 4 Season 9 Arcana Spells Guide: Drop Rate, Farming Tips, and Full Arcana List

Diablo 4: Sins of the Horadrim brings with Diablo 4 Items it a sweeping overhaul to endgame crafting and spell customization. Thanks to the introduction of Horadric Spellcrafting, the elusive Arcana items are at the heart of it. In this guide, we'll cover everything you need to know about Arcana in Season 9: what they are, how to farm them, what each one does, and what we know about Blizzard's plans to fix their drop rate.

What Is Arcana in Diablo 4 Season 9?

Arcana are powerful Diablo 4 Items that socket into your Horadric Spells to modify and empower their effects. This mechanic is part of the new spellcrafting system in Season 9, where players use a combination of Catalysts, Infusions, Jewels, and Arcana to create personalized, synergistic spell effects.

Arcana comes in three tiers of rarity:

Legendary Arcana: Grants new active effects to your Catalyst and can completely reshape its behavior.
Rare Arcana: Offers potent enhancements, often combining offensive or debuff utility with drawbacks.
Magic Arcana: Simpler bonuses like movement speed, status effects, or survivability boosts.

You can equip four Arcana at a time, which allows for significant build customization and optimization.

Arcana Drop Rate Issues: What's Going On?

At the launch of Season 9, players quickly noticed that Arcana was nearly impossible to find. Blizzard quickly addressed some issues, such as the low drop rate of Horadric Phials in Hotfix 2.3.0 on July 2, 2025-but Arcana was left untouched.

As of now, Arcana drop rates remain bugged or heavily throttled, particularly in Horadric Strongrooms where they're supposed to drop.

Blizzard has acknowledged the issue, and although no formal fix has been announced, based on their track record of rapid-fire hotfixes during Season 9, it's likely only a matter of buy Diablo IV Items time before Arcana gets adjusted.