The Snowguard's Blessing trinket can be obtained from the Peerless Boss Fimbulwinter in the dungeon Permafrost.

Snowguard's Blessing will have a random super slayer:

• Aberration Destruction
• Arachnid Doom
• Cannibalism
• Elemental Ban
• Exorcism
• Nature Annihilation
• Reptile Death
• Silver