Place all three dragon eggs to summon Moder — each egg weights 200 weight, so you’ll want to store every egg you find somewhere safe. Dragon eggs are found in dragon nests on high peaks.

How To Obtain Dragon Eggs And Summon Moder Moder is a dragon and one of the toughest bosses that can be found in the mountains of "Valheim." ...

If you're wondering what to expect later on, here's a breakdown of how many bosses there are in Valheim and how to summon them for a fight.