>>51663580I'd say try and get ash if you want a really powerful sync pair, especially since he might not return anytime soon if ever. Otherwise just go for whoever you like.
I only started like 2.5 weeks ago as well though so more experienced players might have better advice.
You should probably look up whoever you want to roll for just to get a general idea on how they work though. I basically maxed out Lusamine when i started only to then look her up and realize that while she is amazing early game she is basically made of glass. Still worth it though because i like her design.