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One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchEternity is MapleStory: Idle RPG’s new T4 weapon grade, added in the October 15, 2026 update, and it ranks above Ancient. You can obtain it in two ways: promote five Ancient T1 weapons after meeting the weapon system’s stage-5 awakening requirement, or reach Weapon Summoning Level 19, where Eternity weapons enter the summon pool and a guaranteed Eternity summon feature becomes available.
The promotion route gives you a defined material target but requires many duplicate weapons and awakening resources. The summon route avoids a fixed duplicate recipe, yet depends on reaching level 19 and then using a probability-based system. The guide below explains both paths, the weapon upgrade rules, the best farming activities, and which Eternity figures are still not published.
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What Eternity is and why it matters
NEXON’s October 15, 2026 patch notes describe the change directly: “A new T4 Eternity weapon grade, higher than Ancient, has been added.” Eternity is therefore not another awakening stage for Ancient. It is a new grade above Ancient that you reach either by promoting eligible Ancient weapons or by summoning after unlocking the new summon threshold.
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The two ways to unlock an Eternity weapon
| Route | What you need | How predictable it is | Main limitation |
|---|---|---|---|
| Promotion | Five Ancient T1 weapons, each awakened to stage 5 under the duplicate-promotion rule | The input requirement is known | You must collect and awaken multiple duplicate weapons before promoting |
| Summoning | Weapon Summoning Level 19, then Weapon Summons | Level 19 unlocks Eternity access and a guaranteed-summon feature, but ordinary summons use a set probability | Reaching level 19 takes summons, and the published Eternity probability is not stated |
Promotion route: five Ancient T1 weapons
The patch identifies five Ancient T1 weapons as the promotion input for Eternity. “Five” refers to five weapon copies, not five awakening levels on one copy. The general weapon documentation explains that promotion converts five duplicate copies of a stage-5 awakened weapon into the next highest tier. In practical terms, prepare five Ancient T1 copies, awaken each one to stage 5, and then use the promotion function to convert them into the next grade.
Because the patch is specifically about Eternity, its wording establishes the five-Ancient-T1 input. The stage-5 condition comes from the broader weapon-system rule. Treat both requirements as mandatory unless a later in-game description changes the recipe: five eligible Ancient T1 copies and the required awakening on each copy.
Summon route: Weapon Summoning Level 19
Eternity weapons begin appearing in Summon Weapons when your Weapon Summoning Level reaches 19. The same level adds a guaranteed Eternity summon feature. This does not mean every ordinary summon from level 19 is an Eternity weapon; the regular summon table remains probability-based. It means level 19 is the gate at which the new grade becomes available and the patch provides a guaranteed-summon mechanism.
The currently published material does not give an Eternity drop percentage, an expected number of summons, or the exact resource total needed to reach level 19. Do not use older weapon-tier rates as an Eternity estimate. The game’s official guide warns that system details can change with future updates, so check the live summon screen for the active rate and the exact wording of the guarantee.
How the weapon system works
Inventory and equipped effects
Every weapon has two effects. Its inventory effect is active while the weapon is in your collection, while its on-equip effect applies only to the weapon currently equipped. You can equip only one weapon at a time. This distinction affects upgrade choices: a weapon can be worth leveling for its attack, accuracy, or attack-speed contribution even when it is not your current on-equip weapon, and a newly obtained Eternity copy may provide an inventory benefit before it replaces your equipped item.
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Leveling with Weapon Enhancers
Weapon Enhancers raise a weapon’s attack, accuracy, and attack speed. A weapon that has not been awakened can be leveled to 100. Enhancers improve the weapon’s level within that cap; they do not replace duplicate copies and they do not by themselves unlock the next rarity or tier.
Awakening with duplicate weapons
Awakening consumes duplicate copies of the same weapon to increase its awakening stage. Each of the five awakening stages adds 20 levels to the weapon’s cap. A fully awakened weapon can therefore reach level 200 instead of the non-awakened cap of 100. Awakening is also important because the promotion rule uses stage-5 awakened duplicates as its input.
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Promotion and tier order
Promotion converts five duplicate copies at the required awakening stage into the next weapon tier. Within one rarity, the tier labels run in reverse strength order: T1 is stronger than T4. Do not assume that a numerically higher tier label is stronger. Eternity is described as a new T4 grade above Ancient because it is a higher rarity/grade band, not because “T4” beats “T1” inside the same band.
Step-by-step promotion checklist
- Unlock the weapon system. The guide-quest progression requirement is 13. You cannot begin collecting weapon-system progress before that feature is available.
- Collect five Ancient T1 copies. Keep track of exact rarity and tier. An Ancient weapon of another tier is not the stated promotion input.
- Reserve the duplicates. Do not dismantle, sell, or use one of the five copies for another awakening if doing so leaves fewer than five eligible promotion inputs.
- Awaken each copy to stage 5. Use duplicate weapons according to the awakening interface. The general promotion rule requires stage-5 awakened copies, so count the awakening stage on every weapon rather than assuming that one fully awakened copy covers the whole recipe.
- Open the weapon promotion control. Select the eligible Ancient T1 copies and verify the previewed result before confirming. Promotion consumes the listed duplicates; it is not a reversible level-up.
- Level the resulting Eternity weapon. Apply Weapon Enhancers after promotion, when you know whether the new weapon will be your equipped weapon or an inventory-effect contributor.
The exact enhancer quantity for Eternity has not been published in the available tables. Save a reserve rather than assuming the new grade uses the same costs as Ancient.
Step-by-step summon route
- Unlock the weapon system at progression 13. This gives access to weapon-related features and the summon progression track.
- Earn Weapon Summoning experience. Perform Weapon Summons using tickets, Red Diamonds, or an advertisement. Summoning level rises as you summon.
- Reach Weapon Summoning Level 19. Before level 19, Eternity is not in the stated Summon Weapons pool. If you had experience above level 18 before the October 15 update, summon after updating so the retroactive progress can be applied.
- Read the live level-19 summon panel. Confirm the current Eternity rate and the text of the guaranteed-summon feature. Rates and guarantees can be revised by later updates.
- Spend the appropriate summon resource. One listed Weapon Summon costs 20 Red Diamonds, although tickets and an advertisement are also accepted. The 20-Red-Diamond figure is the published per-roll cost, not a guaranteed total cost for obtaining Eternity.
- Claim the guaranteed feature when eligible. Follow the in-game counter or claim button rather than assuming that any single level-19 roll is automatically guaranteed.
Where to farm Weapon Enhancers and summon tickets
Weapon Dungeon
The Weapon Dungeon is the principal free-to-play source of both Weapon Summoning Tickets and Weapon Enhancers. It contains 70 stages that unlock sequentially. To clear a stage, defeat Orange Mushmom within 22 seconds. A successful clear returns the dungeon entry ticket, allowing you to continue farming without permanently consuming that entry.
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The dungeon itself unlocks at guide-quest progression 34, which is later than the weapon system’s progression-13 unlock. If you have weapons but cannot find the dungeon, continue the guide quests until progression 34 rather than looking for a hidden menu.
A practical farming loop
- Push the highest Weapon Dungeon stage you can clear inside the 22-second limit.
- Repeat completed stages to build Weapon Enhancers and Weapon Summoning Tickets.
- Use tickets on summons when you are pursuing Weapon Summoning Level 19, but reserve enough duplicate weapons for planned awakening and promotion.
- Use advertisements or Red Diamonds for summons only after checking whether the current level-19 guarantee is close; the value changes depending on your progress.
- When a stage stops being reliable, farm the highest stage with a consistent clear rather than repeatedly failing a faster-looking stage.
Which upgrade should come first?
If you are still building your first weapon
Level the weapon with Weapon Enhancers so that its attack, accuracy, and attack speed are useful immediately. The non-awakened level cap is 100, so leveling alone cannot carry the weapon into the 200-level range. Once you have enough duplicate copies, awaken the weapon; each stage adds 20 levels of capacity and moves you toward the stage-5 requirement used for promotion.
If Eternity promotion is your goal
Prioritize collecting the five Ancient T1 copies and the duplicates needed to awaken them. Enhancing a temporary weapon to its current cap is reasonable for progression, but avoid spending scarce duplicate copies on unrelated upgrades if they are part of your planned five-copy set. Promotion is the route with the clearest material target, not necessarily the fastest route, because every input must be prepared.
If you are close to Weapon Summoning Level 19
Prioritize summons that advance your level, then reassess once level 19 is reached. The summon route can produce Eternity without the fixed five-Ancient-T1 promotion recipe, but it exposes you to the published probability table. Do not discard Ancient duplicates before deciding whether the promotion route is your fallback.
If you are free-to-play
Use the Weapon Dungeon as your foundation. Its tickets reduce the need to spend Red Diamonds, and its enhancers let you keep your equipped weapon effective while you build duplicates. Since the dungeon requires progression 34 and a 22-second Orange Mushmom clear, improve your general combat power enough to meet that time limit before expecting it to fund the entire Eternity plan.
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Promotion versus summoning: choosing a route
| Decision factor | Promotion | Summoning |
|---|---|---|
| Duplicate requirement | Five Ancient T1 copies, with the stage-5 awakening requirement applied to the promotion inputs | No fixed five-copy recipe, but summons can produce duplicate weapons and other results |
| Resource certainty | Known target once you have the right copies and awakening materials | Level 19 and the guarantee are known; the ordinary Eternity probability is not stated |
| Time to access | Depends on collecting and preparing five Ancient T1 weapons | Depends on reaching Weapon Summoning Level 19 |
| RNG exposure | Collection still depends on duplicate drops, but the final conversion is defined | High during ordinary summons because the table is probability-based |
| Best fit | Players who already have Ancient T1 duplicates and can fund five stage-5 awakenings | Players already near level 19 or who prefer progressing through summons |
These routes are not mutually exclusive. You can preserve Ancient T1 duplicates for promotion while using tickets to increase summon level. The important choice is whether a duplicate is being saved for the five-copy recipe or spent on an unrelated awakening.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Known figures and figures that are not published
| Item | Established detail |
|---|---|
| Eternity release | Added in the October 15, 2026 update |
| Position | T4 Eternity, above Ancient |
| Promotion input | Five Ancient T1 weapons, subject to the stage-5 awakened duplicate rule |
| Summon gate | Weapon Summoning Level 19 |
| Weapon Summon cost | 20 Red Diamonds per roll, according to the listed summon information; tickets and an advertisement are also options |
| Weapon Dungeon | 70 sequential stages; Orange Mushmom must be defeated within 22 seconds |
| System unlocks | Weapon system at progression 13; Weapon Dungeon at progression 34 |
| Eternity drop rate | Not stated in the available summon table |
| Total enhancer cost | Not stated for Eternity |
| Expected summons | No published total or average |
Do not calculate a supposed average number of rolls or enhancer budget from older grades. Until an official table publishes Eternity-specific values, those numbers would be guesses.
Common mistakes and fixes
Confusing T1 and T4 strength
Within the same rarity, T1 is stronger than T4. Compare weapons by their stated rarity, tier, effects, and level rather than assuming T4 is automatically the strongest label.
Awakening only one copy
The promotion recipe uses five duplicate copies at the required awakening stage. One stage-5 weapon is not a substitute for five eligible inputs. Check every copy before opening the promotion confirmation.
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Spending Ancient T1 duplicates too early
Using a needed copy for another awakening can leave you short of the five-copy requirement. Mark or reserve planned promotion inputs before spending duplicates.
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Expecting Eternity before level 19
Eternity enters Summon Weapons at Weapon Summoning Level 19. Earlier summons can still provide useful weapons and experience, but they do not meet the stated Eternity access condition.
Assuming level 19 means every summon is guaranteed
Level 19 adds a guaranteed Eternity summon feature, while the regular summon pool remains probability-based. Read the active counter and claim conditions in the current interface.
Missing retroactive summon progress
If you had Weapon Summoning experience above level 18 before the patch, perform a summon after updating so the stored experience and Pass 6 progress can be applied.
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Weapon Dungeon clears require Orange Mushmom to be defeated within 22 seconds. A failed clear does not provide the same farming value as a successful run, so improve damage, accuracy, and attack speed before pushing a stage that you cannot finish consistently.
What to do on your next play session
- Check your guide-quest progression. Reach 13 for weapons and 34 for the Weapon Dungeon.
- Open your weapon inventory and identify every Ancient T1 duplicate.
- Decide whether those copies are being reserved for promotion or used for immediate awakening.
- Run the highest reliable Weapon Dungeon stage to collect tickets and enhancers.
- Check your Weapon Summoning Level. If it is below 19, use available tickets, Red Diamonds, or an advertisement according to your resource plan.
- At level 19, inspect the live Eternity rate and guaranteed-summon wording before spending a large stockpile.
- After obtaining Eternity, level it with Weapon Enhancers and compare its inventory and on-equip effects with your current weapon.
Eternity is therefore a planned progression target rather than a single hidden unlock: prepare five Ancient T1 stage-5 copies for promotion, or build Weapon Summoning Level 19 for summon access. The Weapon Dungeon supplies the free-to-play materials that support either plan, while Eternity’s exact drop rate and enhancer costs remain subject to future official tables and updates.
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