Removing Kagha by force should not be too much of a headache. Because it seems to be canon that she became a Shadow Druid:
https://gatherer.wizards.com/pages/Card/Details.aspx?multiverseid=563162

Of course, you can also spare her and have Halsin banish her. She could be one of several characters you could meet again later.

Last edited by Lotus Noctus; 19/02/23 01:27 PM.