Sokka's role as a strategist and warrior complements the abilities of his bending companions by providing them with tactical guidance, leadership, and support on the battlefield. While he may not possess bending abilities himself, Sokka's quick thinking, creativity, and combat skills help to balance out the team and ensure they can effectively utilize their bending powers in battle. Sokka's strategic mind allows him to come up with plans and tactics that leverage the strengths of his bending companions, making them a formidable and well-rounded team.