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 magical shockwave. Allows one follow-up attack. A Stonedigger sorcery used by the glintstone miners of the crystal tunnel. At the academy, use of this sorcery was a stigma that marked out failed scholars. Note:

Found on a corpse in the second-to-last level of the Raya Lucaria Crystal TunnelGrace, inside an opening in the north.