So I was able to reach an area with 2 wood woads and 3 ancient mud mephits.
This fight turned out to be rather buggy:
-ancient mud mephits have the ability to spawn young mud mephits, however upon doing so said spawned mephits did not perform any actions for several turns. When they did one flew off-screen into the lake/ocean, didn't die from it and just kept standing there. Eventually we were able to target him with arrows and spells. He should have died from falling into that water or at least drown after some time (I have pictures)
-wood woads acted, but sometimes ended up walking from one side to the other to wind up back where they started
A fight we should have lost was eventually won after about 20 minutes of carefully not knocking back anything while using 3 warlocks