Patch 12.0.5 has landed upon the shores of World of Warcraft: Midnight, bringing with it two shiny new achievements for the kind of player who thinks 3,000 rating just wasn't embarrassing enough for everyone around them. If you enjoy spending your evenings getting screamed at in Discord over a missed interrupt, congratulations: Blizzard has added a new tier of suffering just for you, and this time it comes with a certificate.
The Keystone Myth achievement WoW ladder now has a fourth rung that most players will stare at from the ground. At the very top, Blizzard has also nailed a banner reading "Umbral Champion," reserved for the top 1%: because the other 99% of you clearly weren't feeling excluded enough already. Let's walk through every detail, so you can either plan your assault on the summit or at least pretend you had other things to do this season.
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Keystone Myth is the new top-tier Mythic+ achievement introduced in Patch 12.0.5, sitting above Keystone Legend like a disapproving parent who has given up explaining why. To earn it, you must reach a Mythic+ rating of 3,400 during Midnight Season 1. That figure currently translates to timing all eight seasonal dungeons around the +16 key range: which, to be fair, is the same level at which most pug groups begin treating their healers as optional.
Blizzard has been diplomatically clear that 3,400 is not set in stone. In future seasons, the threshold "may adjust": which in Blizzard language means it will absolutely be raised the moment too many people get close to it and start feeling good about themselves. The Mythic+ rating guide Midnight crowd should note: this is an achievement measured once per warband per season, so alt-running the same content on fourteen characters is not going to give you fourteen saddles. One warband. One saddle. Try to contain your grief.
The achievement name changes each season. This one is formally titled Midnight Keystone Myth: Season One. Future seasons will be named appropriately, as Blizzard continues its proud tradition of adding words to things you already know.
For context: because context is what separates a helpful guide from a panic attack: here is every WoW Midnight Season 1 achievements milestone from the bottom of the barrel to the top of the mountain. The new additions in 12.0.5 are at the very end, because that is where pain resides.
Note that the Midnight Keystone Explorer achievement ID on Wowhead is shared under the same general achievement tree (achievement=61255 covers the lower tiers). The Keystone Myth and Umbral Champion achievement IDs are live in-game but have not been indexed reliably in public databases at time of writing, so those two are intentionally left unlinked here rather than send you somewhere wrong.
Here is the part that actually matters to most people who are not going to touch a top 1% title with a ten-foot runic staff. Upon reaching 3,400 rating, your warband receives one Timelost Saddle.
Lindormi will then allow you to choose one mount from a curated selection: a pool containing both brand-new mounts and every Mythic Plus mount collection piece from past Keystone Master and Keystone Legend seasons. In other words: every seasonal mount you failed to grind for between Battle for Azeroth and now is theoretically back on the table. Theoretically, because Blizzard said "curated selection," which means they reserve the right to make exactly two choices available and call it generous.
The Timelost Saddle is earned once per warband per season. It does not accumulate across alts. If you were planning to farm fourteen copies for some reason, you need more help than this guide can provide.
The concept is explicitly modeled after the PvP Vicious Saddle system, which has allowed PvP players to catch up on past Gladiator mounts for years. Mythic+ players waited considerably longer for an equivalent, possibly because Blizzard assumed you were already being rewarded enough by the experience of playing the game. They were wrong, and they have admitted it in the most corporate way possible.

Blizzard revealed two new mount colorations joining the Timelost Saddle pool with 12.0.5, alongside two previously-announced returning seasonal picks. These are the headline shiny objects being dangled in front of your face while you deplete a +17. The High-Yield Shreddertank WoW and Cerulean Deathwalker are the two new recolors: fresh coats of paint on models you may or may not already own in a different shade of disappointment.
Recolor of Enterprising Shreddertank: a goblin war machine for people who wanted something uglier than the original.
Recolor of Sintouched Deathwalker: a shade of blue that communicates "I suffered, but tastefully."
Returning: Dragonflight Season 4 Keystone Master. For those who love armored rhinos and regret simultaneously.
Returning: War Within Season 3 Keystone Legend. Aggressively red. Void-adjacent. Dramatic, like everyone who earned it.
There are exactly fourteen previous Keystone Master and Keystone Legend mounts eligible to return through the Timelost Saddle mount exchange. The symmetry is suspicious and almost certainly intentional. Below is the complete roster of past seasonal suffering, now available for purchase with one fresh round of current suffering. Each mount entry links to its Wowhead item page, IDs verified from Blizzard's own official data.
|
Mount |
Season / Expansion |
Tier |
|
Battle for Azeroth: Season 4 |
KSM |
|
|
Shadowlands: Season 1 |
KSM |
|
|
Shadowlands: Season 2 |
KSM |
|
|
Shadowlands: Season 3 |
KSM |
|
|
Shadowlands: Season 4 |
KSM |
|
|
Dragonflight: Season 1 |
KSM |
|
|
Dragonflight: Season 2 |
KSM |
|
|
Dragonflight: Season 3 |
KSM |
|
|
Dragonflight: Season 4 |
KSM |
|
|
The War Within: Season 1 |
KSM |
|
|
The War Within: Season 2 |
KSM |
|
|
The War Within: Season 3 |
KSM |
|
|
The War Within: Season 2 |
KSL |
|
|
The War Within: Season 3 |
KSL |
The selection Blizzard described as "curated" likely means all fourteen will be available: but that word curated has done a lot of suspicious work in patch notes before, so temper your expectations with the same caution you apply to LFG group compositions.
If Keystone Myth felt too achievable for your particular brand of competitive self-destruction, Blizzard has your back. At the close of Midnight Season 1, players who finish in the top 1% of Mythic+ rating in their region will earn the Umbral Champion: Midnight Season 1 achievement along with an exclusive mount that has not yet been revealed: because showing you the reward upfront would diminish the experience of running +17s for three months on the off chance it looks good.
Unlike the Timelost Saddle, the Umbral Champion exclusive mount WoW will not enter the Timelost Saddle pool in future seasons. It is time-limited and region-specific, which means it functions exactly like every PvP title mount that the community simultaneously covets and complains about being unfairly distributed. The top 1% cutoff floats throughout the season as ratings creep upward: estimates put the threshold somewhere above 3,500, but your specific ladder position is Raider.IO's problem, not ours.
The Umbral Champion achievement is awarded at season's end based on your final standing. Pushing to top 1% in week two and then logging off is not a strategy: the ladder does not care about your vacation plans.

No. It is earned once per warband per season, regardless of how many alts you intend to traumatize with +16 keys.
No. Unlike Timelost Saddle mounts, the Umbral Champion reward is exclusive to this season's top 1% and permanently retired.
Bring it to Lindormi in Silvermoon City's Bazaar or inside The Timeways dungeon portal hub.
Blizzard explicitly stated the number may adjust each season to preserve consistent difficulty and prestige: read: yes, it will go up.
Yes. Like Keystone Legend before it, Midnight Keystone Myth: Season One is a seasonal Feat of Strength and will not be earnable after the season ends.