Season 15 of Diablo 4 is bringing one of the most interesting itemization additions the game has seen in a while, and Soul Splinters are right at the center of it. These brand new socketable items slot into your jewelry, hand out powerful bonuses, and come attached to real penalties that force you to think about how you build your character. Alongside returning legacy uniques from Diablo 1, 2, and 3, Mythic system reworks, and up to three additional Torment tiers, Soul Splinters are going to reshape how players approach gear optimization at the highest levels.
With so much on the way, players need a clear picture of what these gems do, how they interact with builds, and how to obtain them. The sections below walk through everything you need to know before jumping into the Season 15 PTR on August 4.
What Is a Soul Splinter?
Soul Splinters are a brand new type of socketable item arriving in Season 15. They provide power with a bite, giving your character strong offensive or defensive bonuses while attaching a downside that forces you to play around the penalty.
Here are the key facts to know:
They slot into jewelry (rings and amulets), similar to how regular gems work in armor.
They provide elemental and physical resistances based on the type of Splinter.
They come with a give-and-take design where every strong bonus is paired with a drawback such as more damage taken, reduced resource, slower movement, or other penalties.
They can be upgraded in the Horadric Cube, letting you push them into higher tiers of quality.
The give-and-take design is what sets Soul Splinters apart from regular gems. You must find ways around those debuffs while using the bonuses to their full potential.
How to Use Soul Splinter Gems?
Now that you know what they are, the next question is how to actually use them effectively in your build. The system is straightforward, but the real skill comes in matching the right Splinter to the right build.
Where to slot them: Soul Splinters go directly into the sockets on your rings and amulets. On top of that, the returning legacy unique Leoric's Crown counts as jewelry and increases the effect of any gem socketed into it by 75–100%. That interaction means every build might end up gravitating toward Leoric's Crown for the boosted Splinter effect.
How to pick the right one: Because each Splinter has a downside, the best pick depends on your build. For example:
Damage over time builds do not need Critical Strike Chance, so Splinter of Hellfire is nearly a free damage boost for them.
Builds that already have high mobility can shrug off the movement speed loss from Splinter of Pain to gain the damage reduction.
Builds that do not spend much of their primary resource can equip Splinter of Sin without noticing the resource cap reduction.
Upgrade path: Once you find a lower-tier Splinter, you can bring it to the Horadric Cube and upgrade it. The bonus values scale up across the item quality tiers, so grabbing the highest tier possible is the goal for min-maxing.
Soul Splinter Types
Before jumping into the full list, it helps to know how the Splinters are categorized. Soul Splinters come in five different rarities:
Common
Magic
Rare
Legendary
Unique
Higher rarities give better resistance values and stronger bonus effects. There are eight different Splinter types in total, each tied to a specific resistance and offering a unique gameplay effect.
Soul Splinter Gems List with Effects
With the basics covered, here is the full list of Soul Splinters ranked from the strongest and most build-friendly down to the ones with the harshest downsides.
1. Splinter of Hellfire (Best Overall)
Resistance: 35/50/375/625 Resistance to All Elements
Effect: You deal 40/60/80/100%[x] increased damage but lose 100% Critical Strike Chance.
This is the top pick for any damage over time build. Poison Rogue, twisting blades, spirit storm builds, and similar setups do not rely on Critical Strike Chance, so losing 100% of it costs almost nothing. In exchange, you get a flat 100% multiplicative damage boost, which is huge for pushing higher Torment tiers.
2. Splinter of Pain
Resistance: 250/1750/2625/4375 Poison Resistance
Effect: You gain 10/20/30/40% Damage Reduction, but you lose 30% Movement Speed.
The trade-off here is very forgiving. Losing 30% movement speed matters much less than gaining 40% flat damage reduction, especially in higher tier content where survivability is king. Almost every build can benefit from equipping this one.
3. Splinter of the Black Soulstone
Stats: 7/20/30/50 All Stats
Effect: Killing enemies absorbs a soul for 15 seconds. Each soul increases your damage by 2/3/4/5%[x], but increases your damage taken by 0.5%. This effect stacks but does not refresh.
Scales infinitely with kill count and works beautifully in add-heavy content like Helltides or pit farming. The catch is that at boss encounters with no adds spawning, your stacks fall off and this becomes zero DPS. Still one of the strongest picks for AoE clearing builds.
4. Splinter of Sin
Resistance: 250/1750/2625/4375 Lightning Resistance
Effect: You gain 10/20/30/40%[x] Maximum Health, but your Maximum Primary Resource is reduced by 30%.
A 40% multiplicative maximum health boost is enormous for tankiness. If your build does not lean heavily on resource pooling, the 30% resource cap reduction barely matters. Perfect for classes that spend fast and refill quickly.
5. Splinter of Damnation
Resistance: 250/1750/2625/4375 Shadow Resistance
Effect: Killing an Elite Pack increases Monster Power by 1 for 10/15/20/25 seconds.
More Monster Power translates to more experience and better rewards. In Helltides and dense elite farming zones, this Splinter can stack the encounter difficulty in your favor for better payouts. A creative option for players focused on farming XP and loot.
6. Splinter of Anguish
Resistance: 250/1750/2625/4375 Fire Resistance
Effect: You gain 15/20/25/35%[+] Critical Strike Chance and Attack Speed, but your Primary Resource Costs are increased by 30%.
35% additive Critical Strike Chance and Attack Speed is a huge damage spike for crit-based builds. The 30% increased resource cost hurts spender builds, but if you have resource generation to spare, this is a strong offensive pick.
7. Splinter of the Mother
Resistance: 250/1750/2625/4375 Physical Resistance
Effect: You are Unhindered. Touching enemies makes them Vulnerable for 10 seconds. After touching 100/150/200/250 enemies, you are Stunned for 4 seconds.
Permanent Unhindered plus free Vulnerable application is a strong package, but the periodic 4-second stun is painful in higher difficulties where standing still means dying. Best for builds that already have unstoppable uptime to skip past the stun.
8. Splinter of Lies
Resistance: 250/1750/2625/4375 Cold Resistance
Effect: You gain 40/60/80/100% increased Gold Drop Rate, Crafting Material Drop Rate, and 25% Bonus Experience, but you are always Weakened and Vulnerable.
The rewards are excellent for farming, but permanent Weakened and Vulnerable is rough, especially with the new Torment 13, 14, and 15 tiers where you might get one-shotted. Best used only in safe farming content where you already outgear the enemies.
How To Get Soul Splinter Gems
Getting your hands on Soul Splinters is the last piece of the puzzle. Blizzard has not fully spelled out the drop sources, but based on the current PTR details, here is what we know:
General drops from Season 15 content. Soul Splinters drop from the general loot pool once Season 15 goes live, similar to how regular gems drop from enemies and chests.
Overland Ambushes. These rare demon-hunting events in the overworld are one of the likely farming sources for the new socketables. When a demon hunts you, you have 30 seconds to fight or flee, and the encounter is described as difficult with strong rewards.
Challenge Dungeons. The new overland portals let you fight boss encounters, and you can crank the difficulty up to three Torment tiers above your current one for greater rewards, which likely includes Soul Splinters.
PTR Testing. On the Season 15 PTR, the vendor Mrak grants Soul Splinters directly through the "Grant Seasonal Items" boost so you can test them before the season goes live.
Horadric Cube upgrades. Once you have lower-tier Splinters, you can upgrade them through the Horadric Cube to push them into Legendary and Unique quality with much stronger values.
The Season 15 PTR runs from August 4, 10:00 a.m. PDT to August 11, 10:00 a.m. PDT, giving players a full week to try out Soul Splinters, test different build combinations, and figure out which ones fit best with the new Torment 13, 14, and 15 tiers. With Blizzard holding back more content for BlizzCon on September 12–13, we can expect even more details on farming methods and possible tuning changes before Season 15 officially launches on September 15.
