Midgardsormr
From Shin Megami Tensei IMAGINE Wiki
http://i56.tinypic.com/wloink.jpg
When Partner Loki's Friendship level is aboved Linked by Fate, magic-type skill effects + 20%
When Friendship level of partner Fenrir is above "Linked by Fate", Ice-type skill effects + 20%
When Friendship level of partner Hel is above "Linked by Fate", Ice-type skill effects + 10%
+20% Damage to Gods
(Credit of Weapon screenshot goes to LadyBayoneta)