There has been recent info released that Warlocks will have the ability to heal fellow guardians. I am in a group called The 117th Regiment and I am the leader of Fire Team Ascent. A group for warlocks that will focus mainly on healing. My Fire Team is new and is still being built and approved by the admins. But if you would like to join, let me know! Big group lots of friendly people who are excited for Destiny :)