It’s OFFICIAL:

You can only acquire a Fenrir (lvl150) after defeating the Fenrirsūlfr (Fjourd boss) the resulting tame is delivered in a cryopod after the boss dies.

The reason Dododex say it’s a knockout tame is because if you spawn a wild Fenrir you can knock one out and tame it that way, the only down side being the Fenrir CANT spawn in the wild

Punch the sky so people are aware and don’t waste their time hunting imaginary Fenrir in the Tundra regions

The way to tame this creature is to kill the final boss on fjordur.

To tame this creature you must kill the final boss on fjordur. Everyone else is either lying or tamed the modded version. Currently, there is no other way to get one.

The Fenrir refrigerator effect does not work on Primal Crystal.

Fun fact! If you place Fenrir by a direwolf, the direwolfs eyes turn all smokey icy like.

I am not sure if this is due to a glitch in my game, but karate chop the upwards voting system if you see this too.

New wolf!!???Wolves are my favorite animals in the world,I love direwolves and ice,(makes a nice cracking sound)And I am very excited about the new icewolf

These things are not as good as they look

-Syntac

It's not a wild creature, you get 1 fenrir in a cryopod everytime you beat the end games boss of fjordur

Fenrir's inventory acts as a fridge.

You cannot encounter the Fenrir on the map in order to tame one you need to defeat the final boss of Fjordur wether it be gamma, beta, or alpha, to receive a cryo pod with a fenrir inside! The only way to receive a fenrir!! Up so everyone can see!