FalchionBane

I was just playing Awakening and I remembered that I could max out several units through stat boosters, so does anybody know the best way to farm them? This question applies to Fates as well.

Man that sucks. I can't max out my units and make them completely overpowered anymore. Even in the fully upgraded Rod and Staff shops, that only has 1 stat booster for each. :(

So I got my Avatar to level 20/20 (Nohr Prince to Hoshido Noble) and I wanted to reclass into another class , similar to "Second Seals" in Awakening. But when looked at every possible seal for re-classing, the descriptions just said "level doesn't change." Is there a way to reclass in the same way as in Awakening in Fates, or is it not possible?