questions

hi! i just started playing the game not that long ago (global server) and as the title suggests, i have a couple questions that i thought would be best answered here!

1. how far apart are the servers (if at all)? i’ve seen some cards (is that what they’re called in this?) that don’t seem to exist yet (at least in the global version) (it was one with kokoro and kana) and i was wondering, i guess, how long between updates or whatever between each server. i’ve been searching for answers and haven’t gotten any at all. sorry if this doesn’t make that much sense, english is hard.

2. less of a question but a request: does anyone have any tips for getting diamonds (other than money)? i’m only at manager level 64 and it seems like i’ve run out of ways to get them (at least for now). any other tips in general?

thanks in advance! sorry if any of this has already been asked.