Healer
From Guild Wars Wiki
A healer is a character who focuses on restoring and/or preventing health loss in others. Additionally, healers are expected to deal with other maladies affecting teammates, such as conditions and hexes.
As such, it's a basic concept not only in Guild Wars, but in most CRPGS.
[edit] Tools
While there are no general equipment dedicated to this, there are a large number of skills dedicated to this purpose. Most Monk skills and almost all Restoration Magic skills fit here, making ritualists and monks seen as healer professions. Paragons have a large selection of suitable skills too, but can only fullfill some aspects of the role. Dervishes, and rangers also have skills related to healing, but they are not considered healer professions. Mesmers don't, but have good hex removal.
[edit] Notes
- Healer skills in nonstandard professions are:

