>>50116557I kinda like it.
Sure, it is useless, but from a thematic standpoint I think it is really nice. It is a filler Pokemon that makes the environment more realistic - not everything should be a potential killer.
Other examples: Rattata, Farfetch’d, Tangela, Qwilfish, Mantine, Cacnea, Barboach, Relicanth, Finneon, Bergmite, Yungoos, Pincurchin, Unown.
It also has a nice and simple design that fits into the world.
I think they could improve on it from a competitive standpoint by doing something with the Schooling ability Lusardin has and give it a new form this way. Because being weak and useless is core to its identity. Because of this, it should not evolve.
Another thing is that for Luvdisc, others I have mentioned and more, I would like a different purpose than battling. Something like a "ranger" like game mechanic where you have to catch some specific Pokemon to help them, preserve them or transfer them between areas or get some other use out of them.