Eh. I'm partially biased against warlocks. Don't like them. That's just me though. If any subclass can be called even close to OP I'd have to give that to storm callers. But again just my opinion. I think with sunsingers it's not that their broken or over powered. More that the path people choose to take with it is far superior to the other options within the subclass. So bungie should make the other nodes within the tree appealing. Rather then toning down the only good nodes.