Depends on where you are in the game, but my guess from your question is take up a couple at a time, allows for more roster diversity.
Depends on where you are in the game, but my guess from your question is take up a couple at a time, allows for more roster diversity. Reached uncollected and have stopped while I build a roster I’m comfortable with before going again, mainly just doing events and alliance war/quest at the minute. Reason I asked is I have a duped r5 5* falcon at 120ish sig who is considerably better than most of my other champs. I have some really good champs to upgrade, I’m not a great player though