Originally Posted by peropoke

How long would you recommend rolling in the exploration screen? Should I be rolling till all area N cards are at 100? Sounds like forever lol

Personally I didn't bother doing this at all, by the time that idea was pointed out to me I was already done with exploration. Looking back on it, I'm not sure I'd of had the patience for it. If you think you can handle that snails pace of progression, go all in with it, like I mentioned there's no reason to rush the exploration stages.

Originally Posted by JMich

Small correction on this. If you haven't unlocked EX levels, finding a maxed card in gacha will level a random card of the same rarity, or (very rarely) one of a higher rarity. If you have unlocked EX levels, a 100 lvl card will gain an EX level, or if the EX level is also at max, then you'll get the wild card of that rarity.

Oh yeah I forgot about that...I've had all the Gacha girls at 100 for so long now