Blizzard is gearing up for the next major chapter of Diablo IV, and today we’re taking a deep dive into the Season 12 Public Test Realm (PTR) arriving with Patch 2.6.0 on February 10. This PTR gives players an early look at the systems and mechanics that will define Season 12, while also laying the groundwork for the highly anticipated Lord of Hatred expansion, launching on April 28.
Before diving into the mechanics, it’s worth noting that Blizzard has also teased a major Diablo universe announcement on February 13, covering both Diablo IV and Diablo Immortal. With so much on the horizon, Season 12’s PTR feels like a crucial bridge between current content and what’s coming next.
A More Focused Season with a Long-Term Vision
According to Blizzard, Season 12 is designed to be more streamlined and focused, while still delivering a rewarding and engaging experience. Patch 2.6.0 will preview the core foundation of the season, with additional surprise features planned closer to launch. As always, player feedback during the PTR will play a major role in final tuning.
The Killstreak System: Fast, Aggressive, and Rewarding
One of the headline features of Season 12 is the introduction of a Killstreak system, fundamentally changing how players approach combat across nearly every activity in Diablo IV.
How Killstreaks Work
- Slay enemies in quick succession to start a killstreak.
- A UI pop-up tracks your kill count in real time.
- Killstreaks decay after a short time unless refreshed by:
- Additional kills
- Direct damage
- Initial damage-over-time application
Killstreaks are divided into five escalating tiers:
- Killstreak
- Carnage
- Devastation
- Bloodbath
- Massacre
Once the timer fully depletes, the killstreak ends. If you die mid-streak, it ends immediately without rewards.
Rewards
- Experience and seasonal reputation are awarded at the end of a kill streak.
- Rewards scale based on total kills and the highest tier reached.
- Note: Seasonal reputation will not be available during the PTR, but will be active in the live season.
Bloodied Items: Power That Scales with Slaughter
Season 12 introduces a brand-new item quality: Bloodied items. These powerful drops synergize directly with the Killstreak system, rewarding aggressive, fast-paced gameplay.
Key Features of Bloodied Items
- Can drop from any source that normally drops gear
- Contain affixes that scale in power based on your current kill streak
- Feature unique effects tied directly to sustained combat
Example Bloodied Affixes
- Feast: Every 25 kills grants Berserking for 6 seconds; basic skills gain massive attack speed
- Rampage: Resource cost reduction per killstreak tier; stuns nearby enemies when surrounded
- Hunger: Increased rune drop chance during killstreaks; healing on skill use, doubled under 50% life
These mechanics heavily encourage momentum-driven gameplay and reward players who can maintain pressure without dying.
Bloodied Sigils and High-Risk Endgame Content
To further amplify the chaos, Blizzard is adding Bloodied Sigils, which modify endgame activities such as:
- Nightmare Dungeons
- Infernal Hordes
- Lair Bosses
Bloodied Sigils become available starting at Torment I and dramatically increase difficulty and rewards.
What Makes Bloodied Sigils Different?
- Random portals spawn during combat, unleashing dangerous enemies
- The Butcher relentlessly hunts players throughout the dungeon
- Enemies are significantly stronger, turning every run into a high-risk, high-reward encounter
This system closely mirrors mechanics seen in Diablo Immortal, creating constant pressure and unpredictability during dungeon runs.
New Unique Items in Season 12
Season 12 also introduces several new Unique items, many of which are usable by multiple classes and synergize strongly with kill-based mechanics.
Highlights Include:
- Blood-Mad Idol (Unique Amulet)
- You are always Berserking
- Take massive burning damage over time
- Berserking grants significantly increased damage
- Universal Unique Ring
- Life-focused stats and physical resistance
- Every 15 kills increases damage dealt and maximum life
- Unique Dagger (Sorcerer, Druid, Rogue, Necromancer)
- Increased damage to isolated enemies
- Unique Gloves (All Classes)
- Apply Vulnerable and Weakened based on enemy distance
- Bonus damage to enemies affected by both
- Unique One-Handed Axe (Barbarian, Druid, Necromancer, Paladin)
- Movement grants Ferocity stacks
- Ferocity boosts both damage and movement speed
These Diablo IV items emphasize sustained combat, positioning, and aggressive movement.
PTR Vendor Features
The PTR vendor offers:
- Massive crafting material bundles
- All runes, aspects, and uniques
- Maxed Paragon boards and Glyphs
- Campaign completion and full map unlocks
- Access to all Torment tiers
- Seasonal testing items, including Bloodied gear and Sigils
Players can quickly jump into endgame testing without grinding, ensuring meaningful feedback during the PTR window.
Final Thoughts
Diablo 4 Season 12 is shaping up to be a high-intensity, momentum-driven season that rewards skill, speed, and risk-taking. Between the Killstreak system, Bloodied items, and brutally challenging Bloodied Sigils, Blizzard is clearly pushing combat toward faster, more aggressive gameplay—all while setting the stage for the Lord of Hatred expansion.
If you enjoy testing new systems early and helping shape the future of Diablo IV, the Season 12 PTR on February 10 is absolutely worth diving into.
We hope this guide helps you during your Diablo 4 journey. For more Diablo 4 tips and buy Diablo 4 Gold & items services, visit MMOexp.




