One of the glintstone sorceries of the Academy of Raya Lucaria. Imbues the ferrule of the caster's staff with magic, then thrusts it into the ground to create a massive magical shockwave. Hold to continue moving without striking the ground, and then push the end of the staff into enemies. An enhanced version of the glintstone miners' Stonedigger sorcery.

Sellia Crystal TunnelGrace: Found in a chest inside a storage shed in the upper levels of the main cavern.