Artificers Guiding Arrows

The artificer casts the spell Faerie Fire over an equipped crossbow infused with Repeating Shot.

The infused crossbow launches one piece of magic ammunition infused with Faerie Fire when you make a ranged attack with it. The ammunition created by the weapon vanishes the instant after it hits or misses a target. Any target successfully hit with the magical ammunition is outlined in blue, green, or violet light (your choice) and remains so until the end of the Artificers next round. Objects and affected creatures within a 5-foot radius of any target successfully hit shed dim light.

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.

Magical ammunition does standard damage plus your damage modifiers.