Luna weaknesses I've noticed so far
>she gets cockblocked by really dense waves of mobs, esp. if they're tanky like in axion
>this makes her really hard to use in small areas
>shielded mobs force you to constantly circle around since you can't damage them
>she can't damage yellow barriers without having to awkwardly stop her dance and pull out a gun
>compared to other descendants who can use their gun and their skills at the same time
>her beams only shoot in a line, so she can only hit 1 mob per beam and she can't hit enemies behind walls or cover, making her mobbing performance really slow compared to actual aoe nukers
Despite her being the latest dps goddess this makes her fairly balanced all things considered.