Season 15 of Diablo 4, dubbed Hell's Legacy, has brought a wave of crafting content that pulls heavily from classic Diablo lore. From reworked Mythic Unique crafting to hidden runeword recipes ripped straight from the pages of Diablo 2, the Horadric Cube has become the busiest bench in Sanctuary this patch. Players are still uncovering new combinations from the game files, and the list keeps growing.
Here we've sorted out the Diablo 4 Season 15 Horadric Cube Recipes & Craft Guide, covering new recipes, secret Legacy Runeword formulas, Mythic Unique upgrades, and crafting tips on different items.
Changes to Horadric Cube Crafting in Diablo 4 Season 15
The developers rolled out several updates to the Horadric Cube system, ranging from Mythic Unique creation to affix rerolls and material drop rates. Here's what's new.
Mythic Unique Crafting Is Now Deterministic
While the methods to create Mythic Uniques remain the same, the outcomes are far more deterministic in Season 15. Mythic Uniques can be created three ways:
Horadric Cube: Upgrade Direct Item to Mythic
Jeweler: Rune Crafting > Mythic Uniques
Blacksmith: Forge > Mythic Cache
The Upgrade Direct Item to Mythic recipe in the Cube costs more than the other options, but it delivers a total 1:1 transfer. Put a Tibault's Will with ideal affixes, Tempering, and Masterworking into the Cube, and you'll get a Mythic-ized version with everything retained. The only restriction is that you cannot use this recipe on an Unmodifiable item.
Mythic Uniques created this way carry a Crafted tag, and you can only equip one Crafted item at a time. Mythic Uniques from the Jeweler or Blacksmith do not have this tag.
Two New Affix Reroll Recipes
Two new recipes give you more control over unwanted affixes while protecting the traits you want to keep:
Affix Value Reroll: Rerolls all base affixes on equipment and Talisman items (Charms and Seals), while protecting Greater Affixes, Enchanted affixes, Tempers, and Transfigurations.
Horadric Reroll: A second option for Legendary+ Charms and Seals that fully randomizes base Affixes without touching Set Bonuses or Unique/Mythic charm powers.
Material and Cost Adjustments
Blizzard also tuned the economy around Cube crafting. Pure Primordial Dust drop weighting was reduced due to higher baseline Legendary drop rates, while Coarse Primordial Dust becomes less common as difficulty rises. Refined, Volatile, Pure, Enhanced, and Attuned Primordial Dust all become more common at higher difficulties. Royal Gems now cost 10 Forgotten Souls (down from 30), and Grand Gems dropped from 300 to 50.
Notable Bug Fixes
Unique Charms and Unique Items can now have their powers rerolled through the Cube, and Mythic Amulets no longer receive non-maximum Unique Affix values when first Transfigured.
With the systemic changes covered, let's look at the brand-new recipes players can craft this season.
Diablo 4 Season 15 New Horadric Cube Crafting Recipes
The headline addition this season is the return of Legacy Runewords, a system pulled directly from Diablo 2 Lord of Destruction. There are also new rune upgrade recipes that operate on hidden rules borrowed from the original game.
How Legacy Runewords Work
These new runewords are crafted by placing a compatible common-quality white base item plus the listed runes into the Horadric Cube. If the combo is valid, the Cube may show the recipe as "???" before transmuting. The finished runewords behave like Unique items, so you can transmute them, socket them, and enchant them just like any other Unique. Note that no sockets are required on the base item, and they cannot be tempered.
Season 15 added 12 new runes to support this system: Amn, Eth, Mal, Ort, Tal, Ber, Ist, Ith, Lo, Ral, Sol, and Tir.
The 19 Legacy Runeword Recipes (Rune Combos & Base Items)
Below is the full list of documented Season 15 Legacy Runeword recipes:
| # | Runeword | Rune Recipe | Required Base Item |
|---|---|---|---|
| 1 | Ancient's Pledge | Ral + Ort + Tal | Focus, Totem, or Shield |
| 2 | Call to Arms | Amn + Ral + Mal + Ist + Ohm | Various one-handed weapons or off-hands |
| 3 | Edge | Tir + Tal + Amn | Ranged or two-handed weapon |
| 4 | Enigma | Jah + Ith + Ber | Chest Armor |
| 5 | Grief | Eth + Tir + Lo + Mal + Ral | One-handed Sword or Axe |
| 6 | Holy Thunder | Eth + Ral + Ort + Tal | Mace or Flail |
| 7 | Infinity | Ber + Mal + Ber + Ist | Various two-handed weapons |
| 8 | Insight | Ral + Tir + Tal + Sol | Various two-handed weapons |
| 9 | King's Grace | Amn + Ral + Thul | Mace, Flail, or Sword |
| 10 | Leaf | Tir + Ral | Staff |
| 11 | Lore | Ort + Sol | Helm |
| 12 | Pattern | Tal + Ort + Thul | Dagger |
| 13 | Phoenix | Vex + Vex + Lo + Jah | Various one-handed weapons or off-hands |
| 14 | Prudence | Mal + Tir | Chest Armor |
| 15 | Rain | Ort + Mal + Ith | Chest Armor |
| 16 | Spirit | Tal + Thul + Ort + Amn | Various one-handed weapons or off-hands |
| 17 | Stealth | Tal + Eth | Chest Armor |
| 18 | Strength | Amn + Tir | Various one-handed weapons or off-hands |
| 19 | Zephyr | Ort + Eth | Bow or Crossbow |
With 84 item variants across the 19 runewords, since some recipes work on multiple base types, there's plenty of room for experimentation.
Beyond the runewords, some of the most interesting finds this season are the hidden recipes that reveal nothing until the correct ingredients are placed in the Cube.
Diablo 4 Season 15 Secret Horadric Cube Crafting Recipes
Season 15 leaned hard into hidden content, and the Cube is packed with recipes that display no hint until the right items are combined. These fall into two groups: hidden item recipes and hidden rune upgrades.
Hidden Item Recipes
These recipes only run while Season 15 is active, and they show nothing in the interface until the correct materials are placed inside:
| Put In | Get |
|---|---|
| Torn Page + Rusty Cow Bell x3 | Outcast's Travel Pouch |
| Horadric Coin + Engagement Ring x2 + Lost Amulet | Sack of Ill Trinkets |
| 10 Gold | Torn Net |
| Cheap Bangles + Lost Amulet + Useless Key + Holy Chalice + Engagement Ring | Worthless Gold Cache |
| Neyrelle's Hand + Rusted Bardiche + Stamina Potion | Trophy of the Faithful |
| Splinter of Terror + Splinter of Destruction + Splinter of Hatred | Wirt's Lucky Coins |
The Wirt's Lucky Coins recipe is particularly noteworthy since it feeds directly into the Echo of Tristram secret, where a coin thrown into the Tristram fountain opens the red portal to fight Diablo, Baal, and Mephisto all at once.
Hidden Rune Upgrade Recipes
The rune upgrades are hidden the same way, and there are fourteen of them. They make two separate runs rather than one continuous ladder, so there is no recipe joining Sol to Mal. The system follows the classic Diablo 2 "Talsarid" mnemonic (Topaz, Amethyst, Sapphire, Ruby, Emerald, Diamond), shifted up one gem tier since Diablo 4 starts at Crude rather than Chipped.
| Put In | Get |
|---|---|
| Tir x3 | Eth |
| Eth x3 | Ith |
| Ith x3 | Tal |
| Tal x3 | Ral |
| Ral x3 | Ort |
| Ort x3 | Thul |
| Thul x3 + Chipped Topaz | Amn |
| Amn x3 + Chipped Amethyst | Sol |
| Mal x2 + Flawless Amethyst | Ist |
| Ist x2 + Flawless Ruby | Vex |
| Vex x2 + Flawless Emerald | Ohm |
| Ohm x2 + Flawless Diamond | Lo |
| Lo x2 + Grand Topaz | Ber |
| Ber x2 + Grand Sapphire | Jah |
The pattern is straightforward: three of a rune below Sol, two of a rune plus a better gem above it. The six lowest runes need no gem at all.
The Stealth-to-Enigma Trick
Perhaps the most amusing secret involves recycling three Stealth runewords in the Cube. Just like any other Unique, three-to-one recycling works, but the result of transmuting three Stealths appears to add Enigma-style teleport effects to the output. Community consensus is this may be a developer oversight, since Stealth and Enigma share the same icon in the files, but for now it's a working shortcut for builds that want a teleport effect without hunting down the full Enigma recipe.
Now that the recipes are laid out, here's a practical walkthrough of how to actually craft everything in Season 15.
Items To Craft Through Horadric Cube & How To Craft in Season 15
Between runewords, rune upgrades, Mythic Uniques, and hidden consumables, there's a lot to make. This section covers the crafting process step by step.
Crafting a Legacy Runeword
The process is simple once you have your materials ready:
Choose your target runeword and check its recipe (visible at the bottom of the tooltip on existing runewords).
Gather the required runes. For example, Stealth needs Tal + Eth, while Enigma needs Jah + Ith + Ber.
Obtain a compatible base item. This must be a white or gray common-quality item of the correct type. For Stealth, that means a chest armor base. Gambling for white/gray/blue items is the fastest route, and blue items can be cleaned up using the remove affix command in the Cube.
Place everything in the Horadric Cube one item at a time, then hit Transmute. The result is your finished runeword, which behaves like a Unique.
Crafting a Mythic Unique via Direct Upgrade
For players who already have a perfectly rolled Unique they want to push to Mythic:
Confirm the item is not Unmodifiable (avoid Transfiguring the item first).
Place it in the Horadric Cube and use the Upgrade Direct Item to Mythic recipe.
The result carries the Crafted tag, and only one Crafted item can be equipped at a time.
Upgrading Runes
To move up the rune tree, follow the shifted "Talsarid" gem pattern:
Runes below Sol: Combine three of the same rune (no gem needed for the six lowest tiers).
Sol and above: Combine three of the rune plus the appropriate Chipped gem.
Ist and above: Combine two of the rune plus a Flawless gem.
Ber and above: Combine two of the rune plus a Grand gem.
Rerolling Affixes
For gear cleanup, Season 15 gives you two paths:
Affix Value Reroll works on any equipment or Talisman and preserves Greater Affixes, Enchanted affixes, Tempers, and Transfigurations.
Horadric Reroll works only on Legendary+ Charms and Seals and fully randomizes base affixes without touching Set Bonuses or Unique/Mythic charm powers.
Crafting Hidden Items
The hidden recipes require no menu, no unlock, and no discovery step. Just place the exact ingredients in the Cube and hit Transmute. If the combination is valid, the Cube will process it. If not, nothing happens. This mirrors the way Diablo 2 handled hidden Horadric Cube recipes, and it means the community is likely still finding new combinations weeks after the season's launch.
Between the new Legacy Runewords, the hidden rune upgrades, the affix reroll options, and the trail of secret consumables like Wirt's Lucky Coins and Liquid Rainbow, the Horadric Cube in Season 15 is the most active it's ever been. Keep your rare consumables, save your white bases, and try any strange combinations you come across, since Season 15 has proven that if it looks like a Diablo 2 recipe, it probably works.