The Version 1.4 update introduces a formidable new frontier in endgame combat. The Abyssal Expeditions redefine the established progression loop. These infinitely scaling gauntlets serve as the exclusive domain for acquiring materials needed to forge the newly deployed Duet Night Abyss Calamity Weapons. The Calamity weapons are the shiny new weapons that every end-game player wants. If you also want to get and upgrade one of these weapons, read our full and detailed guide on Duet Night Abyss Abyssal Expeditions.
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What are Calamity Weapons?
The DNA Calamity Weapons are the crown jewels of your arsenal, offering unparalleled power once fully ascended. Unlike regular weapons, Calamity weapons have two dedicated upgrade paths that you can choose from. These upgrade paths provide various buffs to your weapons and character. While this may sound enticing, the system is unforgiving if you approach it without a plan. At the moment, there are only two Calamity weapons in the game: The Perpetual Strike Polearm and the Thorned Requiem Assault Rifle. Of course, more Calamity weapons will be added soon.
If you lack the necessary roster to challenge the new Abyssal Expeditions, consider to recharge Duet Night Abyss for Phoxene Plumule on LootBar to gain an instant headstart.
Locking In the Right Potential Nodes
When you perform your first smelt, you are presented with a binary choice between two distinct paths. It is vital to understand that this choice is permanent in terms of your locked progression. Selecting one side grants you a free ascension bonus, but it restricts you to that specific branch for future improvements. If you decide later that you prefer the stats on the opposite side, you must spend additional, non-trivial resources to unlock those nodes. The decision of which side you need to choose depends upon which character you plan to use the weapon with, so choose wisely.
You get access to the first node when you first acquire the weapon. For further node selections, you have to smelt the weapon up to 5 additional times. To advance your smelting level, you need specific Emblems and Calamity crystals (Hydro crystals for Perpetual Strife or Umbro crystals for Thorned Requiem), which are farmed through the Abyssal Expedition mode
Unlocking the Abyssal Commissions
The Duet Night Abyss Abyssal Expeditions are the source of all Calamity Weapons and their upgrades. Access to this grueling arena is heavily gated behind progression milestones. Phoxhunters must first achieve Trial Rank 60. Additionally, the successful completion of "The Calamity He Wrought" quest is mandatory. Interestingly, you get the Perpetual Strife Polearm completely for free during this quest. That just leaves upgrading it and getting your hands on the only other Calamity weapon: The Thorned Requiem.
Initiating an Abyssal Expedition with the Abyssal Compass
Initiating an Expedition is far from free. The party leader must consume a specialized operational key known as an Abyssal Compass. The economic toll of forging a single compass is notoriously severe, demanding four gold commission manuals alongside a staggering 880,000 coins. Relying exclusively on solo queues is therefore a fast way to reach bankruptcy. Since only the party leader must possess a key, players can form squads and use each of their keys one by one. You can also join random co-op squads without having to invest any of your own resources.
How to Beat the Expeditions
The inherent danger of the expedition lies in its relentlessly, infinitely escalating difficulty curve. Combat instances commence at Level 100, with enemies gaining an additional five levels every subsequent round. This means that having just an ok roster of teams isn’t going to cut it. You need to have a definitive endgame roster to have a chance of succeeding.
The Dual Stages
If you want the resources for the Calamity weapons within the Duet Night Abyss Abyssal Expeditions, you'll need to select specific elemental types for the enemies: Hydro and Umbro. Don’t pick blindly, as the stage you choose dictates the rewards you get.
Umbro Stage: This stage provides the Umbro Crystals needed for the Thorned Requiem. If you are upgrading this weapon, you must bring a Lumino DPS. The support units should be chosen to amplify this damage type.
Hydro Stage: This stage is the home of Hydro Crystals, required for the Perpetual Strife. An Electro-focused team is the meta here, allowing you to cut through the stage's specific resistances and mechanics efficiently.
Standing in the Corner for Easy Enemy Kills
The optimal strategy in the abyss isn’t running around and killing everything you come across but finding a cheese spot that you can hide behind cover and still do damage. By finding a corner of the arena and holding it, you force the enemies to spawn in a predictable radial pattern. This is especially potent for ranged characters like Su Yi, who can clear the board before the enemies even reach your position. If you are playing solo, this strategy will save you significant time and keep your HP management stable.
Retreating to Keep Your Compass Level
The Abyssal Compass features a punitive persistence mechanic: it permanently inherits the level of the highest cleared wave. For example, extracting after ten rounds advances the subsequent expedition's starting point to Level 150. Enemies transform into heavily fortified behemoths past Level 180, often turning encounters into agonizing stalemates. Therefore, retreating at wave 200 is highly advised to preserve the compass at a manageable threshold. If the heat is getting too much before Level 200, you can extract at that moment.
Building Electro and Lumino Teams for Fast Clears
Elemental synergy dictates the pace of progression. Electro and Lumino configurations dominate the confined spaces characteristic of these arenas, depending on which expedition you’re tackling. For the Umbro stage, A specialized team comprising Su Yi, Fushu, and Rhythm can do large amounts of AOE damage while ensuring your sanity doesn’t drain. For the Hydro stage, Rhythm, Yuming, and Fushu are your best picks.
Are the Duet Night Abyss Abyssal Expeditions Worth Conquering for the Calamity Weapons?
Despite the diabolical prerequisite costs and the grueling duration of late-stage waves, the investment is undeniably worthwhile. Calamity Weapons provide foundational statistics that standard armaments cannot replicate, with some variants boasting baseline stats reaching an extraordinary 240% CRIT DMG. Securing and maxing these weapons is absolutely mandatory for remaining competitive in high-tier endgame environments. For any Duet Night Abyss player looking to chase the meta, you can’t skip the newest Calamity weapons.
How to Buy Duet Night Abyss Phoxene Plumule Through LootBar
If you want to secure the newest Calamity weapons instantly or upgrade your roster to tackle the Abyssal Expeditions, then recharge Duet Night Abyss for Phoxene Plumule today!
Go to the official LootBar site.
Visit the Duet Night Abyss top up section.
From there, browse the available packages and select the ones you’d like to purchase.
Once the checkout is complete, log in to your Duet Night Abyss account from the following screen.
Visit the in-game store and purchase the package that you paid for.
Your items will be instantly transferred to your account once step 5 is complete!
Conclusion
The Duet Night Abyss Abyssal Expeditions stand as a grueling test of endurance and logistical planning. Mindless aggression leads to swift failure. By intelligently sharing compass costs in cooperative syndicates, exploiting the map, and tactically managing extraction waves, you too can complete the expedition yourself and upgrade your Calamity weapons right away. If the challenge seems tough or you’re too eager to try out these weapons for yourself, use Duet Night Abyss top up from LootBar today to secure everything your heart desires at the absolute minimum investment!
