Designer Jon Peters has explaihned that the Guild Wars 2 combat system was designed in such a way as to preclude the "holy trinity" - the standard party configuration of healer, tank, and damage dealer - despite recent criticism of the MMORPG's claims to the contrary.
"'So much for no Holy Trinity,' we’d hear. 'Guardian is a paladin, dedicated healer, monk, tank…'" he wrote, before adding "Our professions aren’t dedicated healers, DPS, or tanks because frankly, we built a combat system that just doesn’t allow it."
As evidence of profession's generalisation, Peters cited several cross-class features, like a dedicated healing skill slot, and the ability to revive fallen party members.
Other anti-trinity design decisions include efficiency equality when buffing, and the removal of ally-targeted abilities, meaning players must keep their eyes on the action, not the numbers.
Increased mobility counters a tendency towards static battling, and the diversity of skills and weapons available to professions means each is more adaptable.