Ss the developers felt that making it necessary for every party to have a healer was restrictive.

The race and profession of the player determines the skills they can access. However, unlike Guild Wars, skill slots have predefined roles: the first five are determined by player’s weapon and profession, the sixth is for healing Guild Wars 2, like Guild Wars, uses a skill-based combat system, whereby players must select only 10 skills from a much larger pool, introducing an element of strategy. However, unlike Guild Wars, skill slots have predefined roles: the first five are determined by player’s weapon and profession, the sixth is for healing