Buff

From Guild Wars Wiki

A Buff is a positive change with one of two meanings: one in the context of the game statistics, and another in the context of a character's status.

In the context of the game mechanics, a buff is the opposite of a nerf. A buff is a change to a gameplay mechanic that is either perceived as positive or wanted. For instance, when ArenaNet changed all Ritualist spells in the 19/01/07 update to heal more and deal more damage, this was seen as a buff for Ritualists.

In relation to character status, buffs are positive effects, usually caused by spells or equipment, that affect a character. In general, buffs are of temporary nature. In Guild Wars, buff is a synonym for enchantment, although a lot of other skills could be interpreted as buffs, such as Paragon shouts.

When someone requests a buff, that request usually implies enchantments from the Protection Prayers skill tree.