During one of my firsts rank match I encountered a big issue. My opponent was playing a Voltron deck with the main focus on HeartFire Hero. This card would attack me and when i blocked it well over its base health to kill it. It seemed to stay in the negative and regain its health. As my creature's would die going negative but my opponent's Heartfire Hero would not. I also tried to summit a bug for it but the page kept directing me to the forms, where i found nothing about this issue. I just want to know if this is a issues in the game itself or its meant to do that.