It shows that it's about to attack.it grabs the card then drop it and continue so on and on..here is the log Grabbing card: Razorfen Hunter Dropping currently held card! Checking hand cards priorities : Attacking Valeera Sanguinar with Wolfrider Checking hand cards priorities : Attacking Valeera Sanguinar with Leper Gnome Checking hand cards priorities : Attacking Valeera Sanguinar with Leper Gnome Bot has stopped.
