Spirit Mask

This white fabric mask conceals the face as a funeral shroud, with two gold coins sewn over the eyes. You become invisible if you do not speak, move, or take any actions for 1 minute. You remain invisible for up to 10 minutes or until you remove this mask, take damage, make an attack, or cast a spell. While invisible, you can become half visible as a ghostly image or return to invisibility as a bonus action.

Improvement. Starting at 6th level, while invisible, you levitate an inch above the ground, allowing you to ignore difficult terrain and make no noise while moving.