Bioluminescence

The illumination of your esca temporarily leaves, endowing an object of your choice that you touch. The object can span any distance from the smallest of specs to a large boulder within the DM's discretion. You can return this light back to your esca anytime within 24 hours, after which it returns automatically.

This can also be used as a ranged spell attack, in which you dispel the light toward an object or creature within 60 feet. On a hit, the illumination deals 1d6 radiant damage, before returning to your esca.