I could see it representing compassion in the sense that a person would feel like retaliating against someone who had hurt the person on the card. Sometimes compassion can feel like anger right at first, I think.
For instance, you look at this guy on the card and you feel like doing something to the person or persons who hurt them, so you're feeling a compassionate defensiveness for them.
Am I explaining right? We're not used to associating compassion with violence, but even a non-violent person can feel a flicker of anger and desire to hurt someone else in the right circumstance, even though they're probably not likely to act on it.
Think of the larger scale: We fight wars compassionately. Think about going into a country to fight for the people there who are being raped, starved, slaughtered---that's a violent act begotten by compassion for the underdog. Right?