The Oath Rune has quietly become the most hated rune in Path of Exile 2's Expedition endgame — and this week it got the one thing every problem mechanic needs: a confirmed GGG change. If you run Expedition for currency, knowing what the Oath Rune does (and when it silently wrecks your map) is the difference between a fast, profitable clear and ten minutes of killing immortal monsters for nothing. This guide covers exactly what the rune does, why the community tells you to avoid it, how "rune carryover" turns it into a trap in Grand Expeditions, and what GGG has said about the incoming rework.
Quick answer (TL;DR): In PoE2, the Oath Rune is an Expedition Runeshape used to roll Remnants, and its monster modifier makes the Remnant continuously spawn extra waves of monsters that are immortal until you clear the waves — and those spawned monsters drop no loot. The result is a huge time-sink for near-zero reward, which is why the standard community advice is to never let an Oath Rune "propagate" (carry over) in a Grand Expedition. In the current 0.5 “Return of the Ancients” endgame, GGG has confirmed the Oath Rune is being changed — announced by developers on streamer Raxxanterax's livestream — though the exact rework hasn't hit an official patch note yet. Until it does: skip it, and farm your currency with better runes.
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What is the Oath Rune in PoE2?
Expedition is Path of Exile 2's blast-and-loot endgame mechanic: you place explosives around buried Remnants, detonate the chain, and fight whatever the explosion unearths for currency and vendor artifacts. Each Remnant can be rolled with Runeshapes — runes that stack modifiers onto the monsters that spawn from that Remnant, trading extra danger for extra reward.
The Oath Rune is one of those Runeshapes. On paper it belongs to the same family as every other rune: apply it, the Remnant's monsters get a special behavior, and in exchange you're supposed to get more loot for the added difficulty. In practice, the Oath Rune is the rune where that trade breaks down — the danger goes up, the loot does not.
It shows up in the Remnant recipe pool alongside the other runes, and in the current 0.5 endgame you'll see it constantly once you're deep into Expedition farming. That ubiquity is exactly why it became a problem: it's not a rare edge case, it's a rune you're rolling into your maps all the time.
What does the Oath Rune actually do?
The Oath Rune's monster modifier makes the Remnant spawn continuous, repeating waves of additional monsters — and here's the catch that defines the whole mechanic:
- The spawned monsters are effectively immortal until you clear the ongoing waves. You can't just ignore them and move on; they gate your progress through the Expedition.
- Those spawned monsters do not drop loot. You're killing wave after wave of filler enemies purely to make them stop, not to earn anything.
As one widely-upvoted community PSA put it bluntly: "Oath Rune is just a massive time waster, continuously spawning mobs that do not drop loot and creating immortal enemies till you kill these waves." That single sentence is the entire reason the rune is disliked — it converts your clear speed, the thing Expedition farming lives and dies by, into wasted minutes.
Compare that to a good Expedition rune, which raises monster difficulty but pays you back with more artifacts, more currency, or better item rolls. The Oath Rune asks for the difficulty tax up front and then hands you an empty bag. In a game mode where your profit-per-hour is set by how fast you chain Remnants, a rune that stalls the chain for zero reward is a straight loss.
Why is the Oath Rune the most hated Expedition rune?
Three reasons stack on top of each other:
- The loot-to-effort ratio is inverted. Every other layer of danger in PoE2 endgame — map mods, Remnant runes, boss fights — is a bet: more risk for more reward. The Oath Rune is the rare mechanic that gives you the risk and skips the reward. Players don't mind hard content; they mind pointless content.
- It costs you the resource Expedition is built on: time. Expedition is a speed-farm. The "immortal waves" mechanic directly attacks that, and unlike a hard boss you can't skip it — you have to grind the waves down to proceed.
- You often can't opt out of it once it's rolling. This is where the Oath Rune goes from "annoying rune" to "map-ruining rune," and it comes down to a system called rune carryover.
The sentiment is loud enough that it's been a recurring topic on r/PathOfExile2 for weeks — from a June thread flatly stating "oath rune needs some balancing and design revisit" to the grand-expedition PSAs telling players how to avoid it entirely. When a single rune generates that much repeat discussion, GGG tends to notice — and this time they did.
Rune carryover: why "propagating" the Oath Rune in a Grand Expedition is a trap
Path of Exile 2's Grand Expeditions — the large, multi-Remnant Expeditions built from Logbooks — use a rune carryover system. When a Remnant shows a gold icon, the rune effect on that Remnant is transferred ("propagated") to subsequent Remnants you open in the same Expedition. It's a snowball mechanic: good runes carrying over make a Grand Expedition dramatically more rewarding.
Now flip it. If you let an Oath Rune propagate, you don't just eat one Remnant of immortal loot-less waves — you seed that "massive time waster" modifier into Remnant after Remnant, compounding the stall across the entire Grand Expedition. What should be your most profitable, highest-density farming run becomes a slog of clearing empty waves.
How to avoid it:
- Read the Remnant before you commit. When you're choosing which Remnant to propagate in a Grand Expedition, check the rune it carries. If it's the Oath Rune, don't propagate it — pick a different Remnant / rune to carry the gold-icon effect forward.
- Prioritize runes that pay you back for the propagation slot — anything that adds artifacts, currency, or item quantity beats a rune that adds only unkillable filler.
- When in doubt, drop the Oath Rune's carryover entirely. A Grand Expedition with no propagated rune is still fine; a Grand Expedition propagating an Oath Rune is actively worse than doing nothing.
The community's shorthand for all of this is the PSA title itself: "Avoid Propagating Oath Rune." If you take one thing from this guide into your next farming session, that's it.
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Is the Oath Rune being nerfed? What GGG confirmed
Yes. In the last few days, GGG confirmed the Oath Rune is being changed — the confirmation came from developers speaking on content creator Raxxanterax's livestream, and it spread fast: the r/PathOfExile2 thread "Oath rune being changed. Confirmed by GGG in Raxx's livestream" shot up the subreddit within hours, alongside a companion thread asking whether GGG was acknowledging the loot problem specifically.
Two honest caveats, because this is fresh:
- This is a confirmation, not a patch note yet. GGG has said a change is coming; they have not published the exact numbers, timing, or the specific rework in an official 0.5.x patch note as of writing. Treat any "here's exactly how it'll work" claim you see elsewhere as speculation until it's in the official notes at pathofexile.com.
- The problem GGG is targeting is the loot, not just the difficulty. The loudest community feedback wasn't "make it easier" — it was, in the words of one top-voted reply, "the problem is the loot from oath rune." A rework that either lets the spawned monsters drop loot or removes the immortal-wave stall would address the actual complaint.
What this means for you right now (the FOMO-free version): there's no "exploit it before the nerf" play here, because the rune was never good to begin with — it's a time-waster getting fixed, not a money-printer getting closed. The practical takeaway is simpler: keep avoiding it until the patch lands, then re-evaluate once GGG publishes the real change.
How to actually farm Expedition currency in 0.5
Since the Oath Rune is a trap, here's where your Expedition profit actually comes from in the current 0.5 “Return of the Ancients” endgame — so you're farming the right things instead of grinding empty waves:
- Roll for reward runes, not danger-only runes. Favor Remnant rolls and carryover that increase artifacts, currency, or item quantity. Difficulty is only worth it when it pays.
- Bank your Expedition artifacts and vendor smart. Expedition's currency comes out of the artifacts you spend at its vendors — haggling for currency, buying crafting services, and gambling bases. Your artifact income is the real yield, so protect the clear speed that generates it.
- Chain Logbooks for Grand Expeditions — but only propagate good runes (never the Oath Rune, per above). A clean Grand Expedition with a strong propagated rune is one of the best currency-per-hour activities in 0.5.
- Convert your drops up. As you farm, you'll accumulate raw currency; the endgame denomination is the Divine Orb (late 0.5 it trades for hundreds of Exalted — roughly 400+ Exalted per Divine, though the ratio moves daily, so price-check live on poe.ninja or poe2scout).
For the full Remnant-by-Remnant breakdown, see our PoE2 Expedition farming guide and the dedicated Grand Expedition farming guide.
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Frequently Asked Questions
What does the Oath Rune do in PoE2? The Oath Rune is an Expedition Runeshape whose monster modifier makes a Remnant continuously spawn waves of extra monsters that are immortal until you clear the waves — and those spawned monsters drop no loot. It adds danger and time without adding reward, which is why it's considered the worst Expedition rune to run.
Why do players say to avoid the Oath Rune? Because it's a pure time-waster. Expedition farming is a speed activity, and the Oath Rune's immortal, loot-less waves stall your clear for nothing. The community consensus, summed up in a popular PSA, is "Avoid Propagating Oath Rune" — never let it carry over in a Grand Expedition.
What is rune carryover / propagation in a Grand Expedition? In a Grand Expedition, a Remnant marked with a gold icon transfers ("propagates") its rune effect to subsequent Remnants. It's a snowball system meant to compound good runes — which is exactly why propagating a bad rune like the Oath Rune is so costly: you seed the time-waster across the whole Expedition.
Is the Oath Rune being nerfed? Yes — GGG confirmed on Raxxanterax's livestream that the Oath Rune is being changed. However, as of late July 2026 there is no official patch note detailing the exact rework yet, so treat specific "how it'll work" claims as speculation until GGG publishes the change on pathofexile.com.
Should I farm currency with the Oath Rune before the nerf? No. The Oath Rune was never a money-maker — it's a low-reward mechanic being fixed, not an exploit being closed. Keep avoiding it, farm with reward-focused runes, and re-evaluate once the official change lands.
Where does Expedition currency actually come from in 0.5? From the artifacts you earn and spend at Expedition's vendors (haggling for currency, crafting, and gambling bases), plus the raw drops from a fast clear. Protecting your clear speed — by avoiding stall runes like the Oath Rune — is what keeps your currency-per-hour high.
Sources: r/PathOfExile2 community reports and PSAs (Oath Rune behavior and the GGG livestream confirmation), Expedition mechanics per pathofexile.com and community guides. Mechanics current as of the 0.5 “Return of the Ancients” update (Early Access); the Oath Rune rework had not yet appeared in an official patch note at time of writing — verify the final change in GGG's official notes. Live currency values: poe.ninja / poe2scout.
