Blue Morpho

An illusory giant blue morpho butterfly is created in a point of your choice within range which flaps its wings, causing tiny glowing scales to flutter off and float out onto any creature in a 20 ft. cube emanating from it. Any creature in the area when the spell is cast is covered in luminescent scales which give off a blue glow if it fails a Dexterity saving throw. 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.