Aura moderate transmutation; CL 7th; Slot none; Price 34,000 gp; Weight 3 lbs.
This chisel, made from the tooth of a purple worm, functions as a masterwork tool for Craft and Profession checks related to working stone. Beyond that, it grants its owner a burrow speed of 20 feet for up to 5 minutes per day. These minutes need not be consecutive, but they must be spent in 1-minute increments. When a creature holds a chisel of excavation and casts a spontaneous spell with both the earth descriptor and one or more metamagic feats applied, the total level adjustment to the spell is reduced by 1 (to a minimum adjustment of 0).
Pathfinder Player Companion: Blood of the Ancients © 2018, Paizo Inc.; Authors: John Compton, Andrew Hoskins, James Jacobs, Mikko Kallo, Alex Riggs, Stephen Rowe, and Jeffrey Swank.