>>544804803
some supports use a 44111 moonlit set since it makes it easier for them to reach a good crit ratio, and because they don't really need the extra dmg from the elemental 3 costs.
There's also Cartethyia who uses 44111 of her set, cause the 3 cost echoes have an ATK main stat which is useless for her, so it's better to use three 1 costs since they have an HP% main stat