The mission to remove the Sandstorm in Fallen Grave within Wuthering Waves is relatively easy and straightforward, but it does come with some hurdles. In the vast world of Wuthering Waves, you can wander off the beaten path by yourself, but some spots will only reveal themselves after you've completed certain quests.
Therefore, unless you finish The Stygian Lacrimosa main quest, you won't be able to unlock Fallen Grave whenever you please. You can't go far in the area because the colossal sandstorm covers everything.
How to Remove the Sandstorm in Fallen Grave in Wuthering Waves
Head directly to Whining Aix's Mire to ensure the Stygian Lacrimosa quest is up and running. You should locate Jiyan and recover his lost backpack, which houses the Ultrasonic Pulse Chip. Search for it beside a granite rock aligned with a tree. Slot this chip in your Utility gear and use it to sweep the mud off Tacet Discord enemies. Target the mud-covered enemies to generate a water vortex that removes the mud, thereby weakening them. Once you've cleaned off the mud, defeat these enemies to pave the way.
Soon after, you must switch on three suppressor devices placed all over. Each suppressor has to hit 100% activation. Track down the suppressors and fire up the activation process. This will attract waves of enemies trying to sabotage the activation. Defend the suppressors by defeating the enemies and using the Ultrasonic Pulse Chip to clear any mud blobs they throw at the devices. After triggering the suppressors, navigate as instructed until you reach a cave housing a shattered mural.
Inside the cave, align the fragmented pieces of the mural in their proper sequence to reveal the final suppressor. Completing it bears weight, as this task will dissipate the energy field causing the sandstorm. Once you've cracked this, you're golden for the last leg, which is rather the hardest in the quest (at least that's what they say). You need to outmaneuver Mourning Aix, an Overlord Class Echo boss.
Anticipate its attacks by watching for the telltale glow on its wings, tail, and chest, then maintain an aggressive strategy of weaving attacks and dodges while strafing to the sides. Since it's resistant to Spectro Damage, using Rover to defeat Mourning Aix wouldn’t be anything short of a dead end. If you're struggling with its resistance, consider using Chixia's ranged attacks for sustained damage. Keep at it until you take down the boss to put an end to the pesky sandstorm in the Fallen Grave area.
That's all there is to it regarding removing the Sandstorm in Fallen Grave once and for all and making it possible to explore the area. If you're looking for more, browse through our guides on how to level up the Data Bank quickly and move past the basics. You may also want to unleash the full power of the game by leveling up swiftly on the Wuthering Waves.