I got all 10 of every monster in 1 day, and I killed Nemesis the next morning. I have all stats maxed w/ all 7 chars except for 9999 mana and 99999 health, and only like 40 luck, but I still do good. I have everyone's ultimate weapon(Even though I didn't earn Tidus, Wakka, Lulu, and Kimahri's, I customized em.) And every1 has armor w/ break HP limit, HP+30%, auto protect, and auto shell.