Numerous times the bot has played these cards without attacking first. killing my own minions so no damage could be done
We'll check over this, but due to RNG and having cards out on the board, I don't think there will be much to change for the general case. Extremely volatile cards like this should be used with caution in your decks if you're playing constructed and probably better to avoid in Arena since randomness and bots don't work too well. Due to time and processing limitations on users' PCs, there's no way to realistically simulate every possibility that results from playing bomber cards. What could happen is, the simulation for playing the card, then attacking results in better results due to randomness as opposed to attacking first then playing the card, simply because that scenario was eliminated due to time/processing constraints. So, we'll check into it still, but I'd advise not running those cards if you can help it.
