Sunbreakers didn't dominate Mayhem (Nightstalkers are too effective at playing Fun Police...) But they DID dominate objective-based play. Rift. Control. Zone Control....even Clash. Any play mode where players clustered in one location.....a Sunbreaker super could single-handedly annihilate an opposing team...or break their control of an objective. God Forbid you actually have to play a team with multiple SBs on one side in a control match.