Killsteal

Kill stealing is just what it sounds like- one player taking a kill away from another player who has done all the work. It is a problem faced by many MMORPGs. Guild Wars has done away with this problem by making all Explorable Areas uniquely instanced for each group that enters it, so there is no camping of monsters spawn spots. Additionally, players get no bonus from killing a monster (or enemy player), all experience and loot is shared by the party.

However, combative NPCs can killsteal the player/party. If an NPC deals over 50% of the total damage on the enemy, the kill (and rewards) is attributed to that NPC rather than the player. This is noticable early on outside Foible's Fair in Wizard's Folly where the Academy Monk will often engage the nearby Ice Golem.