Talk:"Ancient Japan's Got Talent!"/@comment-98.255.203.28-20131129161411/@comment-68.230.69.26-20131129172026

Hp overflow is exactly what it sounds like. You like the game sit too long and your hp hits your max hp and stops refilling because you're at max. The only way to avoid this at your hp is to wake up ever 118 minutes during the night

The calculator isn't too hard to figure out, the left side is your team, the right side is whatever card you want to face. Select your cards from the middle, you can sort by card type, rarity, etc. As you set up your team, the number below your team atk in the top middle should shift, reflecting the percent chance you have of winning. Obviously, if you aim for too high of a card with too weak of a team, it will likely remain 0%