Morphable Echo - Gusts of Welkin

Open to obtain a random Echo of the following Sonata Effect: Gusts of Welkin. 2pcs Set: Aero DMG +10%. 5pcs Set: Inflicting Aero Erosion on enemies increases Aero DMG for all Resonators in the team by 15%, and for the Resonator triggering this effect by an additional 15%, lasting for 20s.