Radiant skin just adds to the over shield. They are more tanky when in Radiance. Then your have Flame Shield. You add the Ram on there and they can tank a gold gun shot. Then you look at the blade dancer. The ability to kill them in 1shot with a Crit with a shotgun is a miracle shot and since they have blink they can easily avoid it. What does a Sunbreaker have to get out of the way of a killing blow when his super is active? Answer NOTHING. Besides they are tanks. They should be able to take more than one Sniper shot. Even with your clip, that sun breaker would have died to 2 should from something like the Necrochasm. It is not OP. Its fine