Kur is found standing near Brithvar talking to elder Duergar. She seems to be his lieutenant.
Stone Guard Kur is a loyal member of the Clan Flameshade. Should the party conspire with Brithvar against Nere, she would join them against the drow and Duergar cult novices.
Normal weapon damage
Your attack summons thorny vines, dealing Weapon Damage and possibly Ensnaring your target.
Ensnared creatures cannot move and take 1d6Piercing damage at the start of each turn. An ally can use their Help Action to try and tear away the vines.