Quite often with big boards the bot fails to recognize an upcoming lethal dmg from the opponent.

For example we are at 18 and opponent has 15 power on board + weapon + hero power, so he needs just 2 and the bot doesn't trade because trades are unfavorable...

I think a condition for total damage on board is needed and this damage needs to be able to be compared with +/- and */: to other numbers like my hero health, enemy hero healt and etc..