Damage Support for melee groups in mass pvp and protector for backline. Can swap out skills depending what you need and trait for max health, tankiness. Focus on hitting Crit heals for less mana usage for more healing, as well as silence and invis on wand/camo. Our healing scales off our base damage. Having higher crit lets us hit higher heal numbers. With the dagger weapon passive we can silence someone who is attacking our ally and then gain massive healing for that ally after the movement skill. Think of mistweaver monk/holy paladin from wow.
Edit: Updated the build you can run 2 reaper/2 mother or go 2 reaper/general or even go 2 mother/2 general. Depending on what you are looking to do.
This build after testing it for months in KR works in a few ways. You can play as an assassin and go into the enemy zerg and sleep bomb them (causes massive disruption and damage). You can build more tanky and run in with the melee and be a frontline healer. You can play as a guard dog for your ranged and keep the archers/mages safe when a greatsword or xbow comes to kill them with your cc, damage and healing. You can swap out passives for more damage or more healing and a few skills also.
It is a very fun build but requires a lot of set up and work for you to do the big curse bomb combos you have seen on youtube. Also know you are a melee healer so wand/bow will always be the better option at the end of the day for a more traditional healer in the current state of the game.