Wuthering Waves can get a little repetitive after you've captured a few Echos and completed quests. That's when you should take on bosses like Tempest Mephis, earn top-tier loot, and use your Echo in battle.
Tempest Memphis Location – Tempest Memphis Boss Fight | Wuthering Waves
Of the 12 bosses on the map that you unlock after reaching Union level 10, Tempest Mephis is an Electric damage-resistant Tacet Discord. The Echo excels at surprising players by turning invisible, making him difficult to take down. Still, if you continue to dodge his attacks, it should be a fairly doable fight provided you have your characters and weapons upgraded to at least level 40. So, here’s everything you need to know to find the Tempest Mephis boss in Wuthering Waves.
The Tempest Mephis Boss is located in an underground cave to the northeast of the Qichi Village where you first encountered Scar. Since the location is underground, you will need to go to the Tacet Discord sign on the ground and jump into the air currents, as seen in the images above. Use your ground slam button to fight the air currents and jump down, as if you open your glider while jumping down, you will be lifted up instead.
After entering the hole, head down towards the marker and you should see the boss waiting for you, ready for a confrontation. If you took significant damage during the fight, you can leave the zone and the boss will reset. You can then use the nearby Resonance Nexus to fully heal and revive your party and have another chance to kill the boss.