GSSR: Waver or Cu Alter?

tbh rolling for the caster banner seems redundant so I would just yolo fur cu alter if I were you

Personally I would pick cu alter between those two since you already have Merlin. However, you only have a 33% chance of getting the servant you want in the caster and berserker class. You might want to select a different class if you have a higher chance of getting a servant you want there.

I mean, you aren't limited to just those two banners. If you really want one or the other though, I'd go berserker since Cu alter is story locked.

This is an awful question to answer. Odds of success are equally rubbish. If you don't have a herc, roll berserker banner. Otherwise roll whoever you prefer.

Well, Waver can spook you on the Berserker Banner, will he not? And it is as they say, Cu Alter is story locked and there are not that many banners that feature him so why not go at the Berserker Banner? I have the same dilemma about the caster banner. I only want waver since I got tamamo and ilya is a good replacement for Sanzang.

Waver >>>>> Cu Alter.

If it's between those two, you should definitely go with Caster just because of how much easier your life is with your own Waver during farming events.

I wouldn't roll either banner to be honest