O ISO where art thou?!
So yeah, weird complaint but damn, it's really hard at the top levels of this game to get the ISO needed to rank up a some champs. 6* take so much to rank up and unless you're popping crystals like a whale it can get hard to keep up. Just finished 6.4 exploration and now have literally dozens of T2A in my overflow that I can't use because I don't have the ISO to rank up the champs. Would be nice if we had some daily ISO quests with decent rewards similar to the catalyst quests.