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Catalysts in Path of Exile 2 are a powerful niche of currency items that often get overlooked by newer players. They come from Breach encounters and serve one specific role: modifying rings and amulets by adding quality that boosts certain types of modifiers. Unlike regular quality on weapons or armor, Catalyst quality is focused and specialized, allowing you to push your builds in very precise directions.

In this guide, we'll break down what Catalysts are, how they work, provide the full list, and explain when you should (and shouldn't) use them.

What Catalysts Do

Catalysts add “special quality” to rings and amulets. Each type of Catalyst focuses on a category of modifiers — for example, Flesh Catalyst boosts Life modifiers, while Esh's Catalyst enhances Lightning modifiers.

• Each Catalyst adds up to 20% quality in increments (like other currencies).
• The quality directly multiplies the strength of affected modifiers. For example, a +60 to Maximum Life roll enhanced by 20% Flesh Catalyst quality would effectively become +72.
• Applying one type of Catalyst replaces existing Catalyst quality. You can't stack different types on the same item.

This system rewards foresight: you want to use Catalysts on jewelry that you know will be a core part of your build, ideally with strong, relevant rolls.

When to Use Catalysts

1. On Endgame Jewelry
   Don't waste Catalysts on leveling items. Save them for well-rolled rare amulets or rings, or uniques that carry your build.
2. When Min-Maxing
   Once you're in red maps or deeper content, those few extra percentage points can make a real difference. A +20% boost to key modifiers often equals another small passive or two on your tree.
3. Before Final Crafting Steps
   Catalysts don't reroll mods, but applying them before metacrafting or slamming can increase the overall power ceiling of the item.

Complete Catalyst List

When it comes to maximizing value from Catalysts, timing and planning matter just as much as the item rolls themselves. Save the rarer ones like Skittering or Sibilant for your endgame rings and amulets, and don’t hesitate to use the vendor recipe if you’re stuck with duplicates. For players looking to shortcut the grind or diversify their resources, many also choose to buy Path of Exile 2 Currency as a way to keep crafting momentum steady without waiting on rare drops.

Reforge Recipes

If you've collected multiple Catalysts of the same type but don't need them, there's a vendor recipe:

• 3 of the same Catalyst → 1 random Catalyst
• The results are weighted, meaning some Catalyst types show up more often than others. This recipe is handy for cycling duplicates into ones that better fit your build.

Practical Tips

• Save Breach Catalysts until you have your near-final jewelry pieces.
• Prioritize rare stats: For example, Caster and Speed Catalysts are often more impactful than Attribute ones because of their rarity and value.
• Consider the market: In trade leagues, some Catalysts fetch high prices. If you don't need them, it's often smarter to sell and use the currency elsewhere.

Summary

Catalysts in Path of Exile 2 are deceptively simple, but they provide one of the cleanest ways to push your character's rings and amulets past their baseline. Whether it's squeezing extra Life, boosting Chaos damage, or amplifying Cast Speed, the right Catalyst can act like an extra passive or two for your build. The key is knowing when to apply them and on which items. For dedicated players, stockpiling and using them wisely is a hallmark of good min-maxing.

In this guide, we covered what Catalysts are, how they enhance modifiers on jewelry, when to use them, the full list of available types, the special reforge recipe, and some strategic advice for players. Catalysts may look like minor currency at first glance, but in the right context they become a powerful tool for pushing builds to the next level.