Clan Kolkarun are known for being skilled negotiators, and are the most active of the Mror clans out in the wider world. Clan Kolkarun have established ongoing relationships with Aundair, Karrnath, the Talenta Plains, and Zilargo, and diplomats from Clan Kolkarun are arguably responsible for securing Karrnath's support in recognizing the Mror Holds as an independent nation.
Clan Kolkarun was one of the first clans to brave exploring the Realm Below, before the forces of the Daelkyr Dyrrn, the Corruptor had been discovered there. They now maintain only a rudimentary presence in the Realm Below, and haven't made any offensive pushes into the Realm Below in decades.