Waveworn Residue 210 Development Materials A basic material used to break through weapons and upgrade skills for Broadblade Resonators.

A Waveworn residue featuring a double-layered spherical shell. However, the inner balance has been disturbed, causing the Remnant within the inner core to reduce to the Reverberation.
Sources
Forgery Challenge: Eroded Ruins
Souvenir Store
Weapon Shop