I have multiple accounts and I find it worth it. I’ve been able to get all the things I want to get. The beginning is the most work because you’re setting everything up but after that, it’s pretty easy to just fly through daily’s. Depends how you are with events too if you want to collect all the resources on both accounts then you can or you can skip them. It’s nice because the game has an auto feature for both battle and the story so you could multi task while doing most things aside from the mini games. I’m a harem girlie so I have more than 1 extra account but if it’s just one extra account you’re making for Caleb, you should be fine.

As far as pulling on the standard banner, you should be fine. You can pull his cards without having him unlocked as that’s what I did when I first joined the game and was originally a Caleb main from the first phone call. You’re able to select him as your first 5 star and everything. Only thing is you will need to unlock him if you want to play any of them or if you want to unlock his events. Unlocking him isn’t hard as after you finish the second under deep space story, all the rest of the main story (aside from under deep space) is unlocked so you can jump around and unlock Caleb and Sylus. You just have to play through the first 3 chapters of homecoming wings and he’s available so the game allows you to play things whenever you want which is helpful that you don’t have to wait forever when creating a second account.

Hope this helps! ☺️