Blizzard's Season 16 Public Test Realm is experimenting with a new way to make that process more rewarding. A Horadric Cube recipe called Greater Temper allows players to upgrade a Tempered Affix into a Greater Affix, potentially giving an already valuable item another significant improvement without requiring an entirely new drop.
According to Blizzard's official Patch 3.3.0 PTR announcement, the recipe costs 30 Scrolls of Restoration and 1,000 Obducite. It is unlocked through Trash for Treasure, one of the new progression paths in Season 16's Tyrael's Boons system.
That is an intriguing addition to a game that has spent several years trying to decide how much of a perfect item should come from luck and how much should come from deliberate improvement. But there are still important questions about Greater Temper, particularly its eligibility restrictions, how it selects affixes and whether the material cost will feel reasonable outside the PTR.
For now, the new recipe is a feature being tested, not a guarantee that the final Season 16 version will work exactly as described.
Greater Temper Could Change How Players Improve Their Best Items
The principle is simple enough. Instead of relying entirely on finding equipment with naturally occurring Greater Affixes, players can use the Horadric Cube to improve a Tempered property that is already present on an item.
Blizzard's announced Greater Temper recipe requires:
- 30 Scrolls of Restoration
- 1,000 Obducite
- One eligible item with a Tempered Affix
That distinction between a normal affix and a Tempered Affix is essential. Greater Temper is not advertised as a universal Greater Affix generator. Blizzard specifically describes upgrading the Tempered Affix on an item. There is no official confirmation that players can select any ordinary property and convert it, nor has Blizzard explained every restriction that may apply when an item carries multiple modifications.
Those limitations are precisely what players should investigate during the PTR.
Consider the difference between finding an item with several excellent natural properties and trying to perfect the final Temper. Under the current approach, obtaining the exact combination can involve a considerable amount of luck. Greater Temper offers another potentially useful stage of progression after the desired Temper has been established.
That may encourage players to keep promising equipment for longer rather than immediately replacing it whenever another item appears with a slightly better combination of attributes.
It also continues a philosophical change that has been developing for some time. As we argued in our earlier examination of Diablo IV's increasingly complicated crafting system, Blizzard has gradually transformed equipment acquisition into a process involving several separate systems. Finding a Legendary is no longer necessarily the final reward. It is the beginning of a sequence of decisions about what that Legendary might eventually become.
The Horadric Cube has become particularly important in that transformation. During Season 15, Blizzard introduced more deliberate equipment conversion mechanics, including the ability to transform carefully prepared Uniques directly into their Mythic counterparts.
Our coverage of Blizzard's revised Mythic crafting rules showed how much the developers had already moved toward giving players greater control over specific outcomes.
Greater Temper takes that idea in another direction. Instead of transforming an entire item, it improves a particular category of property.
It is not quite the old Diablo II Horadric Cube, where players experimented with runes, gems and strange recipes in the hope of producing something wonderful. Modern Diablo IV tells players much more about what they are attempting to create.
Efficient, certainly. Although Deckard Cain might have been disappointed to discover that the ancient mysteries of the Horadrim now come with a clearly printed materials invoice.
Trash for Treasure Gives Salvaging a More Important Role
Greater Temper is not available simply because a character owns the necessary materials. The recipe is connected to Trash for Treasure, one of four paths in the new Tyrael's Boons progression tree.
The other paths are Curious Addition, Merchant of Mystery and Scent of Gold. Together, they allow players to influence different aspects of Season 16's rewards, from gambling and merchants to Gold, experience and crafting materials.
Trash for Treasure concentrates on the equipment economy. It can reduce certain Alchemist transmutation costs, improve opportunities to acquire Forgotten Souls and increase access to Obducite and Scrolls of Restoration.
One of its most interesting benefits comes toward the end of the path: salvaging Ancestral equipment gains a chance to provide a Scroll of Restoration. The path also unlocks the Greater Temper recipe itself.
That creates a potentially valuable relationship between unwanted loot and the equipment players actually want to improve.
Imagine completing a dungeon and returning to town with an inventory full of Ancestral items. Most are unsuitable for your current build. Their affixes are wrong, their Legendary powers are unhelpful, or they simply cannot compete with the equipment you already own.
Normally, those items become another pile of salvaging materials. With Trash for Treasure, some may also contribute toward the Scrolls needed for your next Greater Temper upgrade.
The important word is "chance." Blizzard has not said that every salvaged Ancestral item will produce a Scroll, and players should not calculate their expected crafting costs as though the reward were guaranteed.
This distinction becomes particularly important when considering repeated upgrades. Thirty Scrolls of Restoration may be a reasonable investment if the seasonal system provides them at a steady rate. It could feel considerably more demanding if acquiring that many Scrolls requires salvaging an enormous number of Ancestral items.
The PTR should help establish how the system behaves, although the economy may still change before launch.
Tyrael's Boons also introduces another decision. Blizzard says players can earn up to 132 points, enough to choose four of the six available selections across its progression paths. Reallocating those points costs 5 million Gold per point.
That cost should not be confused with Marks of Wisdom, the separate currency used to change War Plans Tactics and individual War Plans activity trees. The systems are related through War Plans, but their respec costs are different.
We previously examined those choices in our five important experiments for the Season 16 PTR. For a player concentrating on crafting, Trash for Treasure seems particularly attractive. But the existence of several competing reward paths means it is worth understanding the long-term benefits before investing heavily.
That is especially true when changing your mind comes with a substantial Gold bill.
Will Greater Temper Improve Itemization or Just Add Another Crafting Cost?
The real question is not whether Greater Temper can produce a stronger item. That is its stated purpose. The more interesting question is whether it makes the journey toward that item more enjoyable.
Diablo IV has already demonstrated that additional crafting options can create new problems as well as solve old ones.
During Season 15, players reported situations where Transfiguration turned valuable four-Greater-Affix equipment into a disappointing result. In another case, a player reported that a nearly perfect amulet became Unmodifiable without receiving the expected improvement.
Those incidents involved different Cube mechanics. They do not prove that Greater Temper suffers from the same problems, and Blizzard has not announced that the new recipe can reverse Transfiguration restrictions or restore an item that has already become Unmodifiable.
Nevertheless, they demonstrate why players are understandably cautious when a new crafting process asks them to risk valuable equipment.
Greater Temper could be an excellent addition if it provides a predictable way to improve an item that already has the desired Tempered property. It could also become another expensive step that players feel compelled to complete before their equipment is considered finished.
There is a broader itemization debate here, too. Earlier this year, we covered the argument that Diablo IV needs genuinely rare and exciting drops again. Some players want more control over equipment progression, while others worry that increasingly deterministic crafting reduces the thrill of discovering an extraordinary item naturally.
Both concerns are worth taking seriously.
A successful loot system should reward players for finding something special. But it should also offer sensible ways to improve that item without turning every additional percentage point into another evening of repetitive farming.
Blizzard has already explored similar trade-offs with Season 15's Crafted Mythic restrictions and recycling discoveries, where the ability to obtain a specific powerful item came with new limitations and unexpected community workarounds.
The new Greater Temper recipe offers another opportunity to find a more satisfying balance.
Before the PTR ends, several questions deserve practical testing:
- Which items qualify? Players should determine the exact eligibility requirements and whether particular item types or previous crafting modifications prevent Greater Temper from working.
- Which Tempered property is upgraded? If an item has multiple Tempered Affixes, the interface needs to make the result clear before valuable materials are consumed.
- How expensive is the material loop? Test how quickly Trash for Treasure generates Scrolls of Restoration and whether 1,000 Obducite feels reasonable alongside other upgrade costs.
- What happens to existing modifications? Check that Tempering, Masterworking and other item properties behave as expected after the recipe is used.
- Is the improvement worth the investment? Compare the resulting item against an ordinary Tempered version in actual combat rather than relying exclusively on the character sheet.
These are suggested tests, not confirmed reports of bugs or limitations. Blizzard's official notes describe the central recipe but do not document every interaction players may encounter.
The Patch 3.3.0 PTR runs from October 27 through November 3, 2026, on PC through Battle.net. Blizzard has provided testing boosts through the PTR vendor Mrak, allowing players to obtain crafting materials, equipment and progression unlocks without preparing an entirely new endgame character through normal gameplay.
That makes this an unusually convenient opportunity to investigate Greater Temper before players begin spending valuable resources on the live servers.
It is also worth remembering that Season 16's final implementation may differ from the PTR version. Material costs, eligibility rules and balancing decisions remain subject to change as Blizzard reviews feedback.
Greater Temper is not going to solve every problem with Diablo IV's equipment system. It will not automatically make every drop valuable, eliminate the randomness of finding the right item or settle the old argument about how much control players should have over crafting.
But it could make one important part of the process more satisfying: taking a genuinely promising item and making it better through deliberate effort.
That has always been part of Diablo's appeal. The series began with players descending into dark dungeons in search of magical equipment. Twenty-nine years of sequels, expansions and increasingly elaborate upgrade systems later, the basic pleasure remains remarkably familiar.
Find something wonderful. Make it stronger. Return to Hell and discover whether the demons appreciate your latest investment.
They probably won't.
But at least this time, the Horadric Cube may offer a reasonably predictable receipt.















