A Varying Monster Spawn or a Shared Spawn is one that spawns Creatures from a predefined set of more than one creature, as opposed to traditional monster spawns that only ever spawn a specific creature. For example, a Dawnport varying monster spawn may select from a set {Troll-Trained Salamander, Mountain Troll}; that is, each time a creature spawns, the type of creature is chosen from this set. This creates a more dynamic environment, because a particular strategy may not apply depending on which creatures were selected to spawn in varying monster spawns.
The Varying Monster Spawn system was implemented with the Summer Update 2014. The first areas where it was applied was Oramond and Dawnport.