Season 14 of Diablo 4, titled the Season of Death Awakening, arrives with patch 3.1.0 and delivers the largest overhaul the Mythic item system has undergone since the game launched. Mythic Uniques 3.0 takes a fixed list of six chase items and turns it into a quality any Unique can potentially reach, adds guaranteed affixes across the board, and finally opens up enchanting for gear that used to be locked the moment it dropped. This guide covers every confirmed change, compares the old Mythic system side by side with the new one, and sets The Grandfather's pre-patch numbers against its current version so you can see precisely what shifted.
How the Mythic Rarity System Changed
Up through Season 13, Mythic occupied a separate, locked tier above Unique, reserved for exactly six items: The Grandfather, Harlequin Crest, Heir of Perdition, Ring of Starless Skies, Melted Heart of Selig, and Tyrael's Might. Players referred to these as Uber Uniques, and short of a rare natural drop, there was no reliable way to target one. Season 14 does away with that separate tier altogether. A Unique now has a second path open to it: drop as Mythic outright, or get pushed there afterward through crafting at the Horadric Cube or the Jeweler.
Blizzard splits everything that reaches Mythic-quality into two buckets. The original six get a new label, Iconic Mythics, and stay folded into the system rather than being retired. Anything else that climbs to Mythic through a drop or a craft counts as a standard Mythic instead. Three things happen the moment an ordinary Unique crosses over into standard Mythic territory: its rarity floor jumps straight to Ancestral, its base Unique Power climbs by a flat 30 percent, and whatever affixes are still open on it snap to the top of their possible range instead of landing somewhere in the middle. This is laid out directly in Blizzard's official patch notes for 3.1.0.
Guaranteed Affixes and Enchanting for Mythic Gear
Every Unique that drops in patch 3.1.0 now comes with two affixes locked in from the start, which fixes the old problem of a rare item landing with rolls too weak to use. Chase items get an extra perk on top of that: the door to Enchanting, previously bolted shut on all six original Mythics, is now open for Unique, Mythic Unique, and Iconic Mythic gear alike. That door swings both ways when it comes to quality, too — Enchant a new affix onto a Mythic-quality piece, run it through Transfiguration, or Temper an existing roll, and whatever number comes out lands at the top of its range every single time. A sword that used to sit one bad roll away from perfect can actually get there now instead of getting tossed for a fresh drop.
None of this is randomized, either — each item has its own fixed pair of guaranteed affixes rather than drawing from a shared pool. The Grandfather is locked into Weapon Damage and Critical Strike Chance, Harlequin Crest into Primary Core Stat and Maximum Life, and Ring of Starless Skies into Primary Core Stat and Attack Speed. Knowing those in advance makes planning a build around them far less of a guessing game than it used to be.
Crafting Restrictions You Should Know
Feed a ring into the Horadric Cube's Upgrade to Mythic recipe and what comes back out is a ring or an amulet — never a chest piece pulled from a ring, in other words. The recipe now locks its output to the equipment category of whatever went in. It also refuses Mythic-quality items as input entirely, which shuts down the old trick of dumping a weak Mythic back into the Cube hoping to fish out a stronger one. A handful of reroll recipes affecting Unique and Mythic gear picked up an extra cost too: one Attuned Primordial Dust on top of the usual materials, something that wasn't required before this patch. Iconic Mythics face one more wrinkle on their own — Chaotic and Focused Reroll simply don't work on them anymore, because that entire Transfiguration option was pulled for every Unique and Mythic Unique item in 3.1.0. That leaves the guaranteed affix on an Iconic Mythic permanently fixed, with only the leftover rolls open to Enchanting and Tempering.
Mythic System: Before Patch 3.1.0 vs After
| Aspect | Before Patch 3.1.0 (Season 13) | After Patch 3.1.0 (Season 14) |
| Mythic Rarity | Separate locked tier limited to six Uber Unique items | A quality layer any Unique can pick up via drop or craft |
| Item Categories | Single Mythic category | Iconic Mythics (the legacy six) and standard Mythics (upgraded Uniques) |
| Guaranteed Affixes | None, affixes rolled entirely at random | Two fixed, item-specific affixes built into every Unique drop |
| Enchanting on Mythics | Locked out on Mythic Unique items | Open, and anything added this way settles at the maximum roll |
| Reroll Transfiguration | Chaotic and Focused Reroll usable on Uniques and Mythics | Pulled entirely for Unique and Mythic Unique items |
| Horadric Cube Crafting | No dedicated Mythic recipe existed | Slot-locked Upgrade to Mythic recipe via Pandemonium Fragments; Mythic gear barred as input |
The Grandfather Before and After Patch 3.1.0

Few items show the rework in action as clearly as The Grandfather does. What used to be a fixed, all-or-nothing chase weapon is now a steadier Iconic Mythic that gave up some headline power for a much higher floor. Before 3.1.0, its signature Critical Strike Damage effect sat locked at a flat 150 percent with nothing guaranteed to back it up, so one bad roll elsewhere on the sword could sink an otherwise hard-earned drop. The patch cut that multiplier to 120 percent, but bolted on two guaranteed affixes — Weapon Damage and Critical Strike Chance — and, for the first time, let the sword be run through Enchanting. Community damage testing cited across several Season 14 build guides still shows a net gain for most builds despite the smaller headline number, which is why the sword keeps its spot near the top of the Iconic Mythic tier list. Its current tooltip is up on Wowhead's item page for The Grandfather.
| Attribute | Before Patch 3.1.0 | After Patch 3.1.0 |
| Critical Strike Damage (Unique Effect) | 150 percent multiplicative | 120 percent multiplicative |
| Guaranteed Affixes | None | Weapon Damage, Critical Strike Chance |
| Enchanting | Locked out | Open, added affixes settle at the maximum roll |
| Reroll Options | Chaotic and Focused Reroll Transfiguration | Enchanting and Tempering only; Chaotic and Focused Reroll pulled |
| How to Obtain | Blacksmith's random Mythic recipe or a natural boss drop | Blacksmith's Iconic Mythic Cache (2 Resplendent Sparks plus gold) or a natural drop; not craftable via the Cube's Fragment recipe |
Which Other Iconic Mythics Changed the Most
The Grandfather is far from the only legacy Mythic patch 3.1.0 touched. Harlequin Crest gave up its flat damage reduction completely in return for a bigger boost to skill ranks, pushing the helm toward pure offense rather than survivability. Heir of Perdition got its underlying mechanic rebuilt rather than just retuned, so the change here is less about raw numbers and more about how a build has to be planned around it going forward. Tyrael's Might sacrificed part of its projectile count to pick up a flat damage reduction affix, turning it into a hybrid defensive pick that resistance-hungry classes tend to favor over a pure damage tool. Ring of Starless Skies dropped its Critical Strike Chance roll but kept enough raw strength to stay best-in-slot for several builds regardless. All of this, along with comparable tuning on Endurant Faith, Godslayer Crown, Crown of Lucion, and Shroud of False Death, traces directly back to Blizzard's official 3.1.0 patch notes.
Final Thoughts
Mythic Uniques 3.0 isn't just about new items to chase — it changes what "finishing" a build even means in Diablo 4. Guaranteed affixes paired with Enchanting kill off the old perfect-or-worthless problem with drops, the slot-locked Cube rule turns Pandemonium Fragments into a targeted resource instead of a coin flip, and tuning passes like the one on The Grandfather make it clear Blizzard is willing to keep adjusting legacy items rather than freezing them in place forever. Anyone jumping back in for Season 14 should expect old best-in-slot rankings to move, and the safer bet is judging each Iconic Mythic on its current guaranteed affixes and Enchanting ceiling rather than on however it was rated a season or two ago.







