Magikarps are wonderful creatures hiding great potential behind those glassy looks.

[All of his were already evolved when he got them, of course.]

But you can at least help one start with an early Tackle, if you are lucky. Tynamos can use five attacks, know four of those from the moment they hatch, and can only learn the last from a move tutor. Their evolutions have a much wider movepool, but the first comes at level 39.