Echo farming has long been a part of theWuthering Wavesgrind, and with the 2.0 update, we got a whole new batch of them to farm: Nightmare Echoes. These new versions of old Overlord bosses now only hit harder, but the bonuses they grant are superior to their original variants. Most of them are easy to unlock. Others have a bit more to do.
Seven Nightmare Echoes are available as of the 2.0 launch, and you’ll want to farm them for characters you’ve already built and future ones with the boss elements.

How To Unlock Nightmare Echoes
Unlocking access to five of the seven Nightmare Echoes is a simple enough process. All you need to do iscomplete the Dream Patrol 1 tutorial quest, which you’ll unlock early in your explorations of Ragunna City. Speak to the strange white cat on a roof in the southwestern part of town, and you’ll earn access to the following Nightmares:
You won’t be able to fast travel to the new bosses until you encounter them on the map, but once you do, you’re able to farm them as many times as you’d like.

Nightmare Echo bosses do not award Ascension materials, nor can you spend Waveplates after you beat them. You do get a first-time reward for defeating them, however.
Nightmare Echoes follow the same respawn timer rules as standard Overlord bosses. Once defeated the first time, they’ll reappear after 30 seconds or so. Also, like regular bosses, they have no deterministic way to farm for specific stats. You just need to get lucky.

Unlocking the last two Nightmare Echoes takes a bit more doing.
How To Unlock Nightmare Tempest Mephis
The Nightmare: Tempest Mephis is one of the two more complex unlocks. Earning access to it isa three-step process.
First, you need toclear the three stele challenges in the Fagaceae Peninsulato unlock an Exploration Quest called Where Wind Returns to Celestial Realms. Starting the quest in earnest will clear the heavy storm that locks a later part of the Nightmare to unlock requirements.

The stele challenges requirestandingin a specific location around an altar to fill a progress value. If there are any Tacet Discords in the radius, the progress will reverse to a certain point, and progression is such that you’ll probably need to defeat every wave to clear the stele.
Once you’ve completed all three stele challenges, you canreturn to the base of the Shores of Last Breath and interact with the dormant Lumiscale Construct. It will come alive and attack you, then at about 65% health, it will flee into the ruins, clearing the heavy storm.

Follow the construct to the peak of the ruins andfight it until it reaches 10% health, at this point, aDragon of Dirgevariant will appear that you’ll need to defeat.
The final step to unlock the Nightmare: Tempest Mephis isencountering Fagaceae Peninsula’s four Dream Patrol challenges. You donotneed to actually complete them to unlock the Mephis.

Three of the Dream Patrol arenas are near the Oakheart Highcourt: one in the northeast between the second and third steles, another in the southwest near the end of the broken bridge, and a third southeast on the Highcourt: Lower Tier.
The final Dream Patrol arena is in the shallows southeast of the Shores of Last Breath andwas previously locked behind the heavy storm, which you should have cleared by now. Encountering all four Dream Patrolsplaces the Nightmare: Tempest Mephis at the top of the Shores of Last Breath,where you fought the Lumiscale Construct and the dragon.

How To Unlock Nightmare Crownless
Unlocking the Crownless Nightmare is the toughest of the bunch, as it’s locked behind Dream Patrol challenges andan entire side quest that unlocks the Dream Patrols.
Specifically, you need tostart by heading to some ruins in the northwestern portion of Penitent’s Rest. You’ll get some short dialog from an unknown voice, starting the Quest of Faith sidequest. The quest requires you tohead to four ruins surrounding the mountainand defeat the enemies there.

Enemies are only vulnerable when they stand in the purple light of the torches, marked by a purple radius on the ground.
Additionally, each arena has a number of torches in it. For the second arena and all after, you’ll need tocontinually relight the torcheswhen the knight enemy reaches specific health gates.The Fae Ignis monsters have a fire attack that relights these torches, and by the end of the quest, you’ll not only need to control the Fae Ignis monster’s positions but also deal with the big knight enemy while keeping torches alight.

At the end of each fight,you’ll also need to collect some writingson the ground marked by a yellow glowing light. Once you complete the quest,the strange white cat will let you know to challenge the Dream Patrol arenas, and once you’ve encountered all four, you’ll unlock access to Nightmare: Dreamless.
Where To Find Nightmare Echoes And What They Do
Once unlocked, you’ll findNightmare Echoes scattered about Rinacita, each providing a new buff compared to their 1.0 iterations. Specifically:
12% Electro Damage bonus and 12% Resonance Liberation Damage bonus.

Inferno Rider
Molten Rift
12% Fusion Damage bonus and 12% Resonance Skill Damage bonus when equipped as a character’s primary Echo.
Mourning Aix
Eternal Radiance
12% Fusion Damage bonus when equipped as a character’s primary Echo.
12% Havoc Damage bonus and 12% Heavy Attack Damage bonus.
Feilian Beringal
Sierra Gale
12% Aero Damage bonus and 12% Heavy Attack Damage bonus when equipped as a character’s primary Echo.
12% Havoc Damage bonus and 12% Basic Attack Damage bonus.