Cancer

Although you're pretty fair as a rule and not afraid at all of facing your enemies in a frontal attack, you excel in ambushing your enemies or opponents. Generally, the ambush is so thoroughly worked out, that the other party doesn't have a chance of escaping. Even in open warfare, you have the strengths of a general and are able to think on wide canvas and plan your strategy well in advance and into the future. However, you also have a weakness which often ends up as one of your major causes of defeat : you allow others to appeal to your ego, to your softer side and thereby disarm yourself.
Keep in mind: That you're at your best when you go into the attack rather than when you're on the defensive.