Honey pot

Honey Pot is a term for something, often set out as bait, to draw in victims. The term is used in war, for a wounded enemy soldier left out to draw is comrades into sniper range.

• Honey pot examples from Wikipedia.

In Diablo III, it generally refers to a decoy, pet, or other object placed out where monsters will go aggro on it, allowing the other characters to attack them from afar.