Blessing

A Blessing is a special temporary bonus granted by an NPC.

Acquisition
Blessings are granted by the following NPCs, typically against a payment in gold:
 * Avatars of gods, summoned at a statue of the respective god.
 * Luxon Priests and Kurzick Priests, found in Cantha near Resurrection Shrines of explorable areas controlled by their respective factions.
 * Sunspear Scouts, Wandering Priests, Vabbian Scouts, Whispers Informants, Ghostly Scouts, Ghostly Priests and Forgotten Keepers, found in Elona near Resurrection Shrines.

Characteristics

 * A blessing is not an enchantment, which means it can not be removed (shattered, stripped, etc.) or otherwise be abused by foes. On the downside, it also doesn't count to provided bonuses granted "while enchanted".
 * A blessing does not end when you die.
 * A blessing ends when you zone.
 * Most blessings granted by gods' avatars expire after 20 minutes.
 * Blessings of the same type do not stack.
 * Blessings can't be used in PvP.

Avatar Blessings (Cantha / Elona)

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Avatar Blessings (Prophecies)

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Kurzick / Luxon Blessings (Factions)

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Bounty (Nightfall)
Bounties, also commonly known as "hunts" or "conscription orders", are special blessings that allow you to collect double XP and Sunspear Promotion Points or Lightbringer Points for killing creatures or certain species.

For all further details, see: Bounty

Hunt (Guild Wars Eye of the North)
Like bounties, a hunt rewards players for killing foes in explorable areas, by increasing the reputation with the various races living in the Far Shiverpeaks. See Bounty for details.