Clockwork Faefly

Clockwork. This brass clockwork mechanism is 2 inches long and whirs with the hum of tiny gears inside

Construct Resistance. Is Immune to all damage, except for acid, thunder, and lightning.

Clockwork Weariness. This construct does not require any sleep. However, it may need to be oiled from time to time.

Light. The construct sheds bright light in a 20-foot radius and dim light for an additional 20 feet..

Faerie Fire. 60 ft. range.  Each object in a 20-foot cube within range is outlined in violet light. Any creature in the area when the spell is cast is also outlined in light if it fails a Dexterity saving throw (DC 13). For the duration, objects and affected creatures shed dim light in a 10-foot radius.
Any attack roll against an affected creature or object has advantage if the attacker can see it, and the affected creature or object can’t benefit from being invisible.

After using Faerie Fire, the Clockwork has to use its next action(s) to fly will fly to a secure place and shut down for a minimum of eight hours to recharge.