If you have abusive sergeant and you have no minions on the side of your board, the bot will attempt to play it, but doesn't target anyone with +2 attack this turn and will try to keep playing it for a couple of times and end up not playing the Sergeant and just end turn.
It makes no sense to keep the Sergeant, just play it if theres nothing else to be played? If not make it so it wont try to play the minion 3-4 times? Looks really obvious that it's a bot when it does the same thing for many times
Enemy dont saw this kind of moves... At worst, for enemy player, your card in deck is just highlighted.
