I am a shaper in Belbin's roles

The shaper is a task-focused leader who abounds in nervous energy, who has a high motivation to achieve and for whom winning is the name of the game. The shaper is committed to achieving ends and will ‘shape’ others into achieving the aims of the team. He or she will challenge, argue or disagree and will display aggression in the pursuit of goal achievement. Two or three shapers in a group, according to Belbin, can lead to conflict, aggravation and in-fighting.