Coldfire

Conjures a glowing orb of blue-white light that shimmers like ice.  Can be cast on a fixed point in space or on an object.  Provides light in a 20-foot radius and dim light for an additional 20 feet. Completely covering the object with something opaque blocks the light. The spell ends if you cast it again or dismiss it as an action.

If you target an object held or worn by a hostile creature, that creature must succeed on a Dexterity saving throw to avoid the spell.