Originally posted by electricdawn:

You can. Just need a fire nearby. A fire that Moder cannot extinguish. So yes, it does require a bit of cheese.

I wouldn't call that cheese, doesn't really make it easier to kill moder it just makes the environment survivable. I was thinking you'd have to build lots of fires all over but I might explore alot and see if I can find a moder summon close to a non freezing biome so I can lead her there for the fight.

As for yagluth even fire arrows hurt him but in another challenge run using no potions and light armour found some more openings to hit him that I hadn't found before so it may still be possible to do some melee.