I have three Laevateins. Fodder or merge?

She has no good skills for fodder, but merging is a waste.

Maybe you can build the best one you have if you’re interested in Arena, she’s going to be a bonus unit soon if I remember correctly.
Aside from the neutral one, what are the other two Laevateins IVs? Maybe she’s still workable.

As for fodder I think both Atk/Def Link and Odd Spd Wave are good, but it depends if you have units that will benefit from those skills.

Can I Have One?

In My Opinion,Merge Her If You Don't Have A Unit Who Actually Make A Good Use Off Odd Spd Wave(Nino) Or Atk/Def Link(Lukas)

Keep the neutral. She is a great unit, and I bitterly say that as my only -Atk is still really powerful.

I would keep her and merge her. She's got incredible power tbh. Link skills are great for cheer leaders and enemy phase units with swap or repo... And LLucina