Diablo 4 Obducite Guide: Best Farming Spots in Season 15

Obducite is a key material for Masterworking gear in Diablo 4. You will need plenty of it to upgrade Ancestral equipment and improve your endgame build.

In Season 15, you can farm Obducite through Nightmare Dungeons, Horadric Strongrooms, Kurast Undercity with a Tribute of Refinement, and Infernal Hordes. The best option depends on your build, available resources, and clear speed.

This guide covers the main farming methods and how to get the most out of each run.

What Is Obducite Used for in Diablo 4?

Obducite is a Masterworking material used by the Blacksmith to upgrade eligible equipment. Masterworking improves an item's existing affixes, making it an important part of endgame character progression.

As you upgrade multiple pieces of gear, material costs can add up quickly. Maintaining a reliable supply of Obducite is especially important when you are improving several items or preparing your build for more challenging content.

You can obtain Obducite from several endgame activities, including:

• Nightmare Dungeons and Escalating Nightmare Dungeons.
• Horadric Strongrooms found in eligible Nightmare Dungeons.
• Kurast Undercity runs using a Tribute of Refinement.
• Infernal Hordes reward chests.
• Other activities and reward systems that provide Masterworking materials.

Best Obducite Farming Methods in Season 15

There is no single fastest method for every character. Your actual results depend on difficulty, activity rewards, available entry items, and how quickly you complete each run.

1. Nightmare Dungeons: A Flexible Farming Option

Nightmare Dungeons are a practical starting point when you need Obducite without relying on a specific Tribute or other limited entry item.

Choose dungeons that your character can clear consistently. Short layouts, efficient routes, and quick elite kills help you complete more runs in the same amount of time.

For better results:

• Choose a difficulty that allows you to defeat enemies quickly.
• Prioritize compact dungeon layouts.
• Clear elite groups efficiently.
• Collect available materials and completion rewards.
• Use War Plans that offer material-related rewards when available.

Escalating Nightmare Dungeons are also worth considering. Check the available War Plan options and prioritize material rewards if Obducite is your main goal. The additional encounters can make these runs useful for broader endgame progression as well.

Best for: Players who want a flexible farming route and do not want to depend on specific Tributes.

2. Horadric Strongrooms: Targeted Rewards Inside Nightmare Dungeons

Horadric Strongrooms are additional encounters found in eligible Nightmare Dungeons. Completing them can provide Obducite, making them worth prioritizing when you find a suitable Nightmare Sigil.

To farm them:

1. Collect or craft Nightmare Sigils at the Occultist.
2. Look for a Sigil with the Horadric Strongroom affix.
3. Enter the dungeon and follow the route to the Strongroom.
4. Complete the encounter and collect its rewards.
5. Repeat with another suitable Sigil.

Not every Nightmare Dungeon contains a Strongroom, so you need the appropriate Sigil or encounter to access one.

Strongrooms can be a useful source of Obducite, but their overall value depends on how often you find suitable Sigils and how quickly you complete the encounters. If you play in a group, sharing suitable Sigils can also help make better use of available entries.

Best for: Players who have suitable Nightmare Sigils and can complete Strongroom encounters efficiently.

3. Kurast Undercity: Use a Tribute of Refinement

Kurast Undercity is another option for collecting Masterworking materials. Before entering, use a Tribute of Refinement to target material rewards through the activity's reward system.

If you have a Greater Tribute of Refinement, consider using it when you specifically want to farm Masterworking materials. The Tribute tier and your performance during the run can affect the final rewards.

For better efficiency:

• Use a Tribute of Refinement before starting the activity.
• Defeat enemies quickly to build Attunement.
• Avoid unnecessary detours that slow down your run.
• Complete the activity and collect the targeted rewards.

Tributes are limited resources, so use them when your character can complete the activity comfortably. A faster, consistent run is generally more useful than risking a slow or unsuccessful attempt.

Best for: Players with Refinement Tributes who want to target Masterworking materials.

4. Infernal Hordes: Collect Materials Alongside Other Rewards

Infernal Hordes remain an alternative when you want to collect Obducite while working toward other endgame rewards.

Complete the waves, defeat the Fell Council, and use your collected Aether to open the appropriate reward chests. If your priority is Masterworking materials, choose Spoils of Materials rather than spending all your Aether on equipment rewards.

Your results depend on how much Aether you collect, how many waves you complete, and how quickly you finish the activity.

Infernal Hordes are not necessarily the most efficient choice for every Obducite farming session. However, they can be worthwhile when you also need other materials or want to make progress on several goals at once. If you need additional Obducite for Masterworking, you can also buy Obducite from MMOSO to spend less time farming and focus more on upgrading your gear.

Best for: Players who want a mix of Masterworking materials and other endgame rewards.

How to Improve Your Obducite Farming Efficiency

Choosing the right activity is only part of the process. These adjustments can help you get more value from each farming session.

Upgrade the Urn of Masterworking

Season 15 includes the Urn of Masterworking, a Season Blessing that increases your chance of receiving additional Obducite.

You can unlock and upgrade Season Blessings using Smoldering Ashes from the Season Pass. If Masterworking is one of your main progression goals, consider prioritizing this Urn as you earn more Ashes.

Its value is most relevant when you regularly run activities that already provide Obducite.

Choose a Difficulty You Can Clear Efficiently

Higher Torment difficulties can offer better rewards, but only if your build can handle them without slowing down too much.

If enemies take too long to defeat or you frequently die, moving to a lower difficulty may improve your overall farming efficiency. Focus on completing activities consistently instead of automatically choosing the highest difficulty available.

Make Use of Available Entry Items

Your supply of Nightmare Sigils and Tributes can influence which activity is worth running.

Use suitable Strongroom Sigils when you have them, and save Greater Tributes of Refinement for runs your character can complete efficiently. When you run out of these entry items, regular Nightmare Dungeons provide a more flexible alternative.

You can also switch to Infernal Hordes when you need its other rewards rather than spending the entire session on one material.

Combine Obducite Farming with Other Progression Goals

You do not need to spend every session farming one material. If you also need equipment, experience, or other resources, choose activities that support multiple goals.

For example, prioritize Strongrooms when suitable Sigils are available, use Kurast Undercity when you have Refinement Tributes, and run Escalating Nightmare Dungeons when you want to combine material rewards with additional endgame progression.

This approach keeps your routine flexible without forcing you to repeat the same activity for an entire session.

Which Obducite Farming Method Should You Choose?

The best route depends on your available resources and how efficiently your character handles each activity.

Be careful when comparing farming rates from different guides. Some figures are based on individual player tests, specific builds, or particular difficulties rather than guaranteed in-game drop rates. A route that performs well for one character may be less efficient for another.

If you want to identify your best option, track the Obducite gained and the time spent across several runs. Your own results are more useful than treating a single reported farming rate as a universal benchmark.

For most endgame players, a flexible routine is the most practical approach: use Strongrooms or Kurast Undercity when you have the right entry items, then switch to Nightmare Dungeons or Infernal Hordes when you need other rewards or a more accessible farming option. Keep the Urn of Masterworking upgraded while it is available in Season 15, and focus on activities your character can complete consistently.