Horadric Cube Diablo 4: Crafting & Tuning Prisms Guide

The Lord of Hatred expansion brings back one of the saga's most iconic items: the Horadric Cube. And this time, it doesn't just fuse runes — it becomes the heart of the crafting system in Diablo 4. wudijo broke down the available mechanics in detail, and it's dense. Between affix recipes, Tuning Prisms, Transfiguration, and the mysterious Kullean Tuning Prism, there's a lot to cover.

Here's everything you need to know about how the Horadric Cube works, how to target your affixes, and why chasing the perfect amulet is going to drive you crazy — in the best possible way.

The Horadric Cube: how it works

You'll unlock the Horadric Cube during the Scoreboards campaign. In practice, it works on the same principle as in Diablo 1: you put items in, and you get something else out. Transform, upgrade, combine — the interface lists the available recipes and the required materials for each one directly. No need to look anything up on a wiki; everything is right there in front of you.

The most impactful use of the Horadric Cube is crafting legendary gear. Four major recipes are available for working the affixes on your items:

Add an affix: you take a white, blue, or even yellow item and stack affixes on it until it's full — four affixes on a standard item. This is the foundation of targeted crafting.

Chaotic Reroll: you choose an affix category on the item (offensive, defensive, skill…) and re-roll it into a different category. Useful for correcting a stat that serves no purpose in your build.

Focused Reroll: you re-roll an affix within the same category. An offensive slot stays offensive, but you draw from it to get a different one. Ideal when you want the right stat but not the one that dropped.

Remove an affix: you can even remove one — including on a legendary — and end up with a partially empty item that still retains its aspect. If you know Path of Exile 2, the references will come naturally: it's a bit like Exalted Orbs, a bit like Chaos Orbs, a bit like Harvest crafting. Except here, you have tools to truly target what you want. And those tools are the Tuning Prisms.

Tuning Prisms: targeted crafting finally available

In your inventory, you'll find Tuning Prisms in different shapes and colors. There are quite a few variants, and that's exactly what allows you to truly refine your items. The idea is simple: when you use a Prism in combination with a Cube recipe, you filter the affix category involved.

For example, with an Offensive Prism, when you add an affix it will always be offensive. When you remove one, it removes an offensive affix. When you Focused Reroll, you re-roll an offensive affix into another offensive one. The same logic applies to all other categories: defensive, skill, main stat, resource, mobility. All the major affix families are covered.

In practice, this is going to be a game changer for slots like gloves. You want two skill affixes and two offensive affixes? You can target exactly that, recipe by recipe, Prism by Prism. No more pure gambling with every enchant.

On the availability side, we don't yet know the exact drop rate for these materials. But we saw players finding them as early as level 20 in the preview footage. That's encouraging: it suggests the system is accessible during leveling, not just in hardcore endgame. The real question remains whether the recipes can generate Greater Affixes — the famous GGA. wudijo is optimistic about this, especially after his interview with the development team where crafting a blue item all the way to BIS was mentioned. We'll see at launch.

Transfiguration: the ultimate finish for your item

Transfiguration is the upgraded, permanent version of the Sanctification we had in Season 11. Before, it was a seasonal mechanic. Now, it's a core game system, integrated directly into the Horadric Cube. The idea: you put your item in and it has a high chance of becoming unmodifiable. It's the final step in crafting — you seal the item, but in exchange you gain a bonus affix.

This fifth affix could be attack speed, cooldown reduction, an additional main stat… We don't yet have the exhaustive list of possible outcomes, but the principle is clear: a small power boost in exchange for a risk. Because yes, in Season 11 Sanctification could replace an affix with something useless, or even worse than what you had before. A lot of players hated that.

The Kullean Tuning Prism: the expansion's biggest gamble

Based on what we saw in Season 11, the pool of available aspects should be around thirty options — generic aspects not specific to any class, like the Accelerating Aspect, the Aspect of Inner Calm, or the Aspect of Might. Class-specific aspects, which are generally far more powerful, would not be in the pool.

So we're talking about roughly a 1-in-30 chance of landing something useful for your build — and even then, you still need a good roll, because amulets benefit from a 50% bonus on aspects. That gives you an idea of the grind level involved.

But before even using the Kullean Tuning Prism, you first need to have the right amulet. And that's where things get really tough. The new amulets in the expansion can roll absolutely insane stats — vulnerability damage multipliers, damage-over-time multipliers, numbers that are genuinely scary. And that's not all: unique amulets will now have random stats too. Which means some players will need to farm a perfect unique neck without even being able to craft on it.

On legendary amulets, on the other hand, you retain the ability to use the Horadric Cube to target your affixes — and then attempt the Kullean Tuning Prism for the aspect. The progression looks something like this: find the right legendary amulet with the right affixes (Greater Affixes if possible), then re-roll the Kullean aspect until you land something useful, then potentially Transfigure on top to attempt a fifth affix — all without bricking the item between steps. That's the absolute jackpot of the game.

On the economy side, Kullean Tuning Prisms will likely become an extremely valuable and tradeable resource. Players who don't grind enough to farm the perfect amulet could simply sell them — and make great profit. Tryhards will buy them to throw at their GG amulet. It's exactly the kind of economy system Diablo 4 needed for its endgame, with genuinely high-value items whose rarity is well calibrated — something on the order of a Divine Orb in PoE.

The skill tree overhaul accompanying this expansion will also shake up the build landscape. It promises a very dense season on the theorycrafting side.

Summary

The Horadric Cube in Diablo 4: Lord of Hatred is a complete targeted crafting system featuring four affix recipes, Tuning Prisms to filter categories, permanent Transfiguration (with the Entropic Tuning Prism for the cautious), and the Kullean Tuning Prism for amulet enthusiasts who love a big gamble. It's the endgame crafting the community has been asking for for years — with just enough RNG to keep the progression exciting.

For everything coming with the expansion, check out our full overview: Lord of Hatred — everything coming to Diablo 4.