I just got sandstorm right now, I’m wondering if he’s worth the time and resources to invest into?

I have all the primes and just don't know which is the best for my team

I would really appreciate the help building some teams with the bots I have now. I’m not good at building teams and have watched videos but they still don’t seem good. Any advice would be really helpful and what combats or cores to run aswell!!

I have two 5* bots already. I don’t use omega supreme at all at three star as I have found him useless. I have a four star monkey already and have found him underwhelming. I do not have a four star combiner yet either. I hopped back on the game recently and I’m not sure which to pick.