Griffes de Mastodonte d'ombre

Requires Attunement.
While wearing both claws, you gain a burrowing
speed of 20 ft, and you can tunnel through solid
rock at a rate of 1 ft per round.
You can use a claw as a melee weapon while
wearing it. You have proficiency with it, and it
deals 1d8 slashing damage on a hit (your STR modifier applies to the Atk and Dmg rolls, as
normal).
While wearing the claws, you can't manipulate
objects or cast spells