Are you counting with or without insurance? That makes a diff, and they still fail. I know once i failed 7 times on 1 card on Adam, with insurance. (Not all on the same day), when he was going to Angel3. I know i didn't count cards til then. That was when i quit using insurance, it's a rip-off. But hurts to lose cards, specially leader cards since you can't get them in tavern, and it kills me to lose stuff i pay perfectly good money on. On gold heroes, i have found it to be like 3 fails for 1 success, once they get past 50% it's at least that if not more.