Fjorn-Kosef, Who Knits The Icy Lattice

is a legendary troll encountered in the second Healing Pool level of. He is the second of the three legendary trolls found there, being preceded by and followed by.

Overview
Fjorn-Kosef uses his fists to fight in melee combat, as well as a mutation unique to him, Frost Webs, at range.

Melee Combat
Fjorn-Kosef's are technically tier 4 artifacts that are classified as cudgels. They always come with the freezing item mod and are always slotted with. They deal base damage, plus 3-4 cold damage, and have 9 PV due to Fjorn-Kosef's Strength bonus. Despite their status as artifacts, they are attached to Fjorn-Kosef's body and cannot be removed or obtained, and he will not drop them or their installed cells upon death. However, dominating him will allow the player to uninstall and drop the cells.

Skills
To supplement his fists, Fjorn-Kosef possesses Cudgel Proficiency as well as several skills from the Dual Wield skill tree, including Offhand Strikes and Ambidexterity. Finally, he has the Swimming skill, allowing him to move more quickly through the pools of found within his lair.

Frost Webs
Fjorn-Kosef possesses a unique mutation known as Frost Webs. This grants him the "Knit Frosty Webs" activated ability, which when used, allows him to create on a tile of his choosing up to 12 tiles away. The selected tile will be guaranteed to populate with webs, while the 4 tiles orthogonally adjacent to that selected will have an 80% chance of being populated. The webs themselves behave much like normal, causing creatures to become stuck upon occupying the same tile as them, but have the additional effect of cooling creatures next to or within them due to their extremely low temperature of -250°. This can cause the creature to freeze following prolonged exposure.

Budding
Like the other legendary trolls, Fjorn-Kosef will begin to bud when the player is within the same zone as him, which will cause him to produce a in an adjacent tile after  rounds. These foals are allied to Fjorn-Kosef and share his alignments, attacking anything hostile to him. Fjorn-Kosef will begin to bud again immediately after producing each troll foal; however, he cannot produce more foals if he is surrounded on all sides by creatures or walls, or if there are already 18 troll foals within the current zone.

Special Properties
Fjorn-Kosef has the unique property of being extremely difficult to freeze himself, having a freezing point and brittle temperature of -9999°.

Additionally, like the other legendary trolls, Fjorn-Kosef is capable of holding two-handed weapons in one hand; however, his ice-encrusted fists prevent him from holding anything.

Progressing Past
Fjorn-Kosef's lair has a small room located at the southeast corner containing, leading further into Bethesda Susa. The room is composed of ; entry is permitted through a silver, unlocked via a. One can always be found within Fjorn-Kosef's inventory, though such a key can also be obtained in other ways, notably as a reward from village quests. The key can be retrieved by killing Fjorn-Kosef, or by trading with him if the player's reputation with trolls is sufficiently high.

Entering the room containing the stairs does not necessarily require the player to go through the door; they can also break the walls or circumvent them through other methods, such as phasing through them or teleporting past them. Additionally, creating stairs down using a can allow the player to skip the room entirely.

Tips

 * A high level of Cold Resistance is recommended when fighting Fjorn-Kosef due to his many temperature-reducing abilities.
 * Avoid getting caught within the frosty webs, as they will immobilize the player and lower their temperature, reducing their Quickness and eventually freezing them solid.
 * Combat can be completely avoided if the player's reputation with trolls is high enough.