There aren't that many queen players. It would have to be you and lifekatana lol. Or me if I were playing random. Slam rook dumps on queen though. At level 7 it would practically nuke and unshielded queen or one hit both shields. Near a tower (where most 2v1 fights occur from my experience), a good slam rook would push them back, or, if they play badly, kill one (or both if they're absolute herp de derp entourage build without shamblers)