I just never engage right in their face. I force them to travel 2-3 turns to me. Grease or the new druid moonbeam attack force bottlenecks they don't want to use. If you're going to betray the Hag, then it's a matter of dealing with the sheep first.
If you're wood elf you can out run them every turn after an attack. As a wood elf druid you can literally kite them around the swamp and they will never touch you. Especially if you get Crusher's ring for thee extra +3m.
Lots of boring cheese in this game. Who knew limiting combat to a single action per character and making average combat pure roll of the dice would yield terrible results and encourage cheese.