I remember when I played FFIX I had Dagger in my party for most of the game, until I realized that there was a really basic magic she couldnt learn that I needed to beat the game. So I had to grind and level Eiko up so I could use her at the end.
Good, then I think I won’t bother to put Dagger back in my team again!
My party in FFIX:
>Zidane (for obvious reasons)
>Eiko (I’d choose Dagger instead but she’s mute now)
>Vivi (you don’t need a reason to choose him)
>Quina (dunno, I think it’s fun to collect blue magics with him/her)