In Wuthering Waves, there are quite a few oddities in the world that can benefit players in the long run. Aside from the adorable dancing tortoise that revitalizes your HP, there are certain types of Echos that carry unique abilities and looks. Echoes in Wuthering Waves are a character stat set that can give them increased abilities. Resonators have a specific trait where they can equip Tacet Discords and enjoy using them in battle.