Stonebeard King

Once you reach the dining hall during the journey quest "Chapter 7: The Magic Chisel 2", you’ll find a lot of frozen enemies on the wall. Shoot the shatter crystal on the chandelier to force it to swing to the other side. Shoot it again to force it to crash to the side this time. Shoot it for the third time to dislodge the shatter crystal, allowing you to take pieces of it that you can throw.

Take a piece of the shatter crystal and throw it at the middle wall where a troll is frozen. Blast it to release the Stonebeard King. Similar to Jarn Fotr, this boss is capable of releasing ice shards with its stomp and its weapon. Being an ice troll, Stonebeard King doesn’t have any resistance to your Leviathan axe and frost attacks so use them without holding back.

There will also be wolves that will join the fray. As long as you keep Atreus shooting his shock arrows, it will be enough to damage the boss and Kill the wolves. Use your axe throws and runic attacks to deal damage instead of getting up close and engaging it with melee attacks. Finish it off to get the Boar Stampede runic summon, hacksilver, and Solid Svartalfheim Steel x4.