BIG Changes in 12.0.5: What About Raids? Warcraft Weekly

Patch 12.0.5 Raid Changes: Voidforge, Vault Math, and the 12.0.7 Flex Mythic

The April 21 weekly reset shipped 12.0.5 Lingering Shadows, and most of the headlines went to Mythic+: the Voidforge, the Timelost Saddle, the Umbral Champion mount. Raiders read those headlines and asked the obvious question of what is in this patch for them. The honest answer is more than the first wave of coverage made it sound, and the bigger answer lands in 12.0.7 with the first flexible Mythic raid in WoW's history. Here is the raider-side read on what changed, and what is two months out.

Key Takeaways

• Voidforge rolls for raid bosses cost 2 Nebulous Voidcores each, twice the M+ rate. Worth it for boss-locked trinkets and tier slots.
• You get up to three Voidcores per week: 2 from Decimus on weekly reset, plus 1 purchased from Vaultkeeper Elysa for 6 Thalassian Tokens of Merit.
• Ascendant Voidcores and the Ascendant Nilhammer add a second-tier upgrade path for weapons and trinkets, which is the raider-priority gear.
• 12.0.7 Sporefall ships the first Mythic Flex 15-25 raid in WoW history. Single boss (Rotmire), week of June 16.
• 3,400 M+ rating hands out the Timelost Saddle this season, and top 1% of region closes with the exclusive Umbral Champion mount.
• Lindormi's Glow is a tank-spec toggle that highlights priority enemies in every M+ dungeon, useful on raid alts that pug their weekly key.

The currency math is what most of the early coverage got wrong, so it is the first place to dig in.

Voidforge for Raiders: The 2-Core Boss Roll

The Voidforge is built around Nebulous Voidcores, a new bonus-roll currency. After you clear an eligible activity you can spend Voidcores at the Voidforge to roll a random item from that activity's loot table, scoped to your Loot Specialization. The catch worth understanding is the per-roll cost: 2 Voidcores buys you a bonus roll on a raid boss, while 1 Voidcore buys a bonus roll on Mythic+, Bountiful Delves, or Nightmare Prey Hunts. The 2-cost is steep, but the system also has a Loot Spec filter and a no-duplicates pool, so a raid roll is a targeted attempt at gear you do not already own from that lockout. For tier slots and boss-locked trinkets, that is the most efficient pull the patch offers.

You unlock the system with the quest Building the Voidforge from Decimus in The Howling Ridge, then collect Elementary Voidcore Shards on the way to your first transmute. Wowhead's Voidforge guide covers the full mechanic and the upgrade path described in the next section.

Three Voidcores a Week: The 2+1 Math

The "three bonus rolls per week" framing the early coverage used belongs to the Voidforge, not the Great Vault. Here is the math: Decimus hands out 2 Nebulous Voidcores per week on reset, and Vaultkeeper Elysa sells 1 additional Voidcore for 6 Thalassian Tokens of Merit once you have completed Decimus' quest chain. That is 3 total, which a raid-first character would typically spend as one raid roll (2 cores) plus one M+ roll (1 core), or three M+ rolls on a +10 grind week. Total Voidcores available to a character grows by 2 per week for the remainder of the season, so banking cores for a tier-token boss kill is a legitimate strategy.

The Ascendant Voidcores branch is the raider's other lever. The Ascendant Nilhammer upgrades weapons and trinkets along a second-tier path that the M+-only player does not need to engage with, and several of the raid-locked upgrade slots are gated behind boss kills in the current Season 1 raid lineup, which is worth a Mythic Flex roster check if you have been raid-light this season.

Mythic+ Pressure That Affects Raiders

Two new Mythic+ achievements pull on raider attention too. Keystone Myth (3,400 rating) rewards the Timelost Saddle, which you exchange with Lindormi in Silvermoon for a mount from a curated pool of past Keystone Master / Legend mounts plus new ones. Umbral Champion closes the season for the top 1% of M+ runners in your region with an exclusive mount no other tier earns. Mythic raiders who already grind keys for tier upgrades suddenly have a clean second target on the same weekly schedule, so if you are organizing raid-night people for after-raid keys, push toward Keystone Myth at 3,400 while the saddle is in-season.

Lindormi's Glow: Tank-Spec QoL for the Pug Alt

Of every quality-of-life change in 12.0.5, the one most likely to land on raider alts is Lindormi's Glow. Talk to Lindormi as any tank-spec character and toggle on the feature: priority enemy forces are highlighted in every Midnight Mythic+ dungeon at every key level. The benefit is biggest for tanks pugging keys around their raid schedule, because you stop needing to memorize 12-week dungeon route iterations on a character you only press buttons on twice a week.

12.0.7 Sporefall: WoW's First Mythic Flex Raid

The headline raider news in this window is what 12.0.7 Revelations ships at the back end of June. Wowhead's 12.0.7 PTR coverage confirmed the headliner: Sporefall, a single-boss raid against the fungal entity Rotmire in Grudge Pit, Harandar, will ship with a Mythic Flex 15-25 player difficulty. That is a first in WoW's history. Mythic raid difficulty has been fixed at exactly 20 players since Warlords of Draenor introduced it in 2014, and the locked roster size is the single biggest barrier to pugging Mythic content for most guilds. A flex Mythic single-boss is a smart shape for the experiment: no encounter has to be tuned across the full tier at variable size, and the data Blizzard collects from a 15-25 single boss is exactly what shapes whether the system rolls forward into a full 12.1 tier.

Release window is the week of June 16, 2026, and PTR Mythic Flex testing happened May 14. For raid leads, the right read is to start thinking about a 15-25 roster posture for the back half of June rather than holding the line at 20.

The Social Side Of Raiding Still Matters

None of the gearing-system surface area replaces what people actually log in for. The two hours on Wednesday and Sunday with the same eight to twenty-two people, that is the version of WoW that has the half-life. New systems funnel new gear at you. Old groups give you reasons to log in for the gear. The 12.0.5 changes do not move that needle, and the 12.0.7 flex-mythic change leans hard into it: a single-boss Mythic at flexible roster size is exactly the right shape for a guild that has lost three core raiders to work schedules and would otherwise sit the encounter out.

FAQ

What is the Voidforge bonus-roll cost for raid bosses?

Two Nebulous Voidcores per raid boss roll. Mythic+, Bountiful Delves, and Nightmare Prey Hunts cost one Voidcore per roll.

How many Voidcores can I earn per week?

Three: two from Decimus on weekly reset, plus one purchased from Vaultkeeper Elysa for six Thalassian Tokens of Merit after you have unlocked the Voidforge.

When does Patch 12.0.7 Sporefall release?

Week of June 16, 2026. The Mythic Flex 15-25 player difficulty was PTR-tested on May 14.

Is Sporefall really the first flexible Mythic raid in WoW?

Yes. Mythic raid difficulty has been locked at exactly 20 players since it was introduced in Warlords of Draenor in 2014. Sporefall's Mythic Flex 15-25 is the first time the format has scaled.

How does the Timelost Saddle work?

Earn 3,400 Mythic+ rating during Midnight Season 1 to unlock the Keystone Myth achievement and receive the Timelost Saddle. Exchange the saddle with Lindormi in Silvermoon for a mount from a curated pool that includes past Keystone Master / Legend mounts and new options.

What is the difference between Keystone Myth and Umbral Champion?

Keystone Myth is a fixed-threshold reward at 3,400 M+ rating. Umbral Champion is the top-1%-of-region cutoff at season's end, with an exclusive mount only that tier can earn.

Where This Leaves Raiders

For most raid mains the right shape this season is to spend the 2-core raid Voidforge rolls on tier and boss-locked trinkets you actually need, run a +10 on reset day for the third Voidcore, and start planning Sporefall roster numbers for late June. If you are short a Mythic raid roster or a key-pushing group, the WoW Midnight boost services hub bundles the current Season 1 raid clears and the Mythic+ rating push together, which is particularly useful for raid leads who lose a few seats to summer schedule conflicts.