Summary

Diablo 4 Season 15 gives players several ways to farm Mythic Uniques, Mythic Seals, Mythic Charms, and Resplendent Sparks. Although different endgame activities can provide these rewards, the three Prime Evils encounter is one of the most valuable targets for players who want to maximize their Mythic farming.

The key is to build a farming loop around Primeval target dungeons, collect the required Splinters, and use additional activities to generate Sparks and guaranteed Mythic rewards. Here is how to make the most of each option. To keep your farming loop efficient, buy Diablo 4 Gold and stock up on the materials.

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Farm the Three Prime Evils for Mythic Rewards

The main Mythic farming target is the special encounter against all three Prime Evils. You must reach Torment 10 to access it, while Torment 12 is recommended when your build can handle the difficulty.

This encounter can reward Mythic gear, Mythic Seals, Mythic Charms, and other valuable loot.

How to Unlock the Prime Evils Encounter

You need three different Splinters:

Splinter of Destruction

Splinter of Terror

Splinter of Hatred

Collect all three and take them to the Horadric Cube. Transmuting them creates the key required to enter the special Tristram dungeon where the three Prime Evils appear together.

You must also progress through the relevant Deckard Cain storyline to unlock the location. If another player has already unlocked the content, however, you can join them and teleport to the area without completing the requirement yourself.

Defeat All Three Prime Evils

The encounter puts all three bosses into the same fight, creating dangerous beam patterns and overlapping attacks. Keep moving and avoid standing directly in their attack paths.

The bosses also have a revival mechanic. Defeating one does not permanently remove it while the others are still alive, so focus on controlling the fight rather than assuming the first defeated boss is gone for good.

Ultimately, all three Prime Evils must be defeated to complete the encounter and claim its rewards.


Farm Primeval Target Dungeons for Splinters

The fastest way to prepare for repeated Prime Evils runs is to farm the special Primeval target dungeons.

These are Torment 10 dungeons marked by red gates on the map. Locations include special gates near Zabanztet, Kyovashad, and the Diablo the Labyrinth area.

Focus on Speed Instead of Full Clears

Primeval target dungeons are designed for repeated farming. They do not require a consumable opening material, so you can run them continuously as long as your character can clear the content efficiently.

The dungeon effectively operates at Torment 10 even when your character is playing at a higher Torment level.

For this reason, focus on the objective rather than clearing every monster. Once the dungeon directs you toward a Prime Evil such as Baal, move directly toward the target and finish the encounter as quickly as possible.

The corresponding boss can drop its Splinter, although the drop is not guaranteed. These dungeons can also provide Unique items, Mythic opportunities, and Resplendent Sparks, making them worthwhile even when the Splinter does not appear.

 

Progress Season Rank for Extra Mythic Rewards

Season Rank progression provides another reliable way to build your Mythic resources while farming other content.

Higher ranks can reward Splinters, Mythic Unique Journey Caches, Resplendent Sparks, and keys for additional endgame encounters.

Prioritize Mythic Caches and Sparks

Mythic Unique Journey Caches are particularly valuable because they provide a guaranteed Mythic Unique.

Season Rank progression can also supply additional Resplendent Sparks and other resources needed for endgame encounters. This makes seasonal progression a useful complement to direct Mythic farming rather than something to ignore once your build reaches the endgame.

 

Use Echoing Hatred Keys for Guaranteed Mythics

Echoing Hatred is another valuable option whenever you obtain its access key.

The activity becomes increasingly difficult as the waves progress, so push as far as your build can comfortably handle. The major reason to run it is the guaranteed Mythic drop at the end.

Because the required key is relatively rare, use these opportunities when they become available instead of holding them indefinitely. The guaranteed reward makes each successful run a valuable addition to your overall Mythic farming rotation.

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Target Farm Mythics With Lair Bosses

Lair Bosses remain useful when you are looking for a specific Unique that you want to upgrade into its Mythic version.

Use Superior Lair Boss Keys

Baal can be targeted with Superior Lair Boss Keys. After defeating the boss, you can open the reward chest and select a relevant boss target to improve your chances of obtaining the Unique you are looking for.

A targeted Unique can potentially drop as a Mythic version, although the result is still heavily affected by RNG. This method is therefore most useful when you already have a particular Mythic Unique in mind.

Add Nemesis Portals to Boss Runs

Your War Plans can also improve the value of regular Lair Boss farming.

Progress through the center tree to unlock Greater Nemesis and Ultimate Nemesis. These effects can cause a Nemesis Portal to appear after defeating a boss and opening its reward chest.

Entering the portal lets you fight additional bosses and gives you another opportunity to collect valuable loot, making Nemesis effects a useful addition to repeated boss farming.

 

Maximize Mythic Armament Runs

Mythic Armament runs remain another source of Mythic opportunities, although they are less powerful than in previous seasons.

To increase the number of reward chests, progress the Undercity toward the Gutter Filth node. Beacon interactions can then spawn a Portal Prankster during the run.

Each Portal Prankster you defeat provides another chest at the end. A successful run can therefore produce several additional reward chests.

Using a Mythic Unique Tribute of Armaments makes these extra chests especially valuable. Lower-tier Tributes of Armaments can also be combined in the Horadric Cube to create higher-tier versions.

 

Craft Mythic Uniques With Resplendent Sparks

You do not have to rely entirely on random Mythic drops. Resplendent Sparks provide several crafting options that let you convert accumulated resources into Mythic Uniques.

Upgrade a Specific Unique

The Horadric Cube lets you upgrade a Unique into its Mythic version for five Resplendent Sparks.

The resulting Mythic Unique receives a crafted tag, and only one crafted-tag Mythic Unique can currently be equipped at a time.

This is particularly useful when your build depends on a specific Unique and you want to guarantee its Mythic version rather than relying on random drops.

Craft Random Mythic Uniques

The Blacksmith offers two Mythic crafting options that cost three Resplendent Sparks:

Craft a random Mythic from the iconic Mythic pool.

Craft a completely random Mythic Unique.

These crafted Mythics do not receive the crafted tag, allowing you to equip them without the same restriction.

If you craft a Mythic that you do not need, dismantling it returns one Resplendent Spark, allowing you to recover part of your investment.

Target a Mythic Item Type With Runes

The Jeweler provides another crafting route through rune crafting.

This option costs three Resplendent Sparks alongside runes of different rarities. Its main advantage is the ability to target an item type, such as one-handed weapons.

However, it requires additional Rune resources and still involves substantial RNG, so it is better suited to players who have accumulated enough materials for repeated attempts.

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Build Your Season 15 Mythic Farming Loop

For an efficient Mythic farming routine, start with the Primeval target dungeons and farm the three required Splinters. Since these dungeons do not consume an opening material, they can serve as the foundation of your farming loop.

Once you obtain the Splinter of Destruction, Splinter of Terror, and Splinter of Hatred, transmute them in the Horadric Cube and use the resulting key to enter the special Tristram encounter against the three Prime Evils.

At the same time, continue progressing your Season Rank for Mythic caches, Sparks, and additional keys. Use Echoing Hatred keys when available for their guaranteed Mythic reward, and run Lair Bosses when targeting specific Uniques.

Nemesis Portals can add extra boss encounters to your farming sessions, while Mythic Armament runs provide additional chest-based opportunities when you have the appropriate Tribute.

Finally, save your Resplendent Sparks for the Mythic Unique your build actually needs. Whether you upgrade a specific Unique, craft a random Mythic, or target an item type through the Jeweler, Sparks give you a way to turn repeated farming into more controlled Mythic progression. To fund the gear and materials needed for that progression, Diablo 4 Gold can help you.