Yes, Novabomb will kill a Sunbreaker, because it's a ranged Super. Golden Gun is easy to avoid if you don't suck. Same with shutting down blade dancers. Even if you have "the right tools" there will still be people who aren't so stupid they can't pay attention to their surroundings, plus there's always the team aspect of having someone watch your back to consider. If a Sunbreaker sees you and he's got his hammers out, you're 8 out of 10 times going to die from splash damage by it.