So do what do you need, a ranged unit or a green unit, well in either case, it seems like there are better options, I mean you could 5 star that Robin or that Fae. But I don't know what you want, sorry if I am of no use.
Nino is a pretty common unit so if you really want a good nino in your team, maybe you should try to get another one. I have a spd + Nino and doubling threats is incredibly useful