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Mourning Frost
Mourning Frost
Very Rare
1d6+1 Bludgeoning
Heart of Ice: When dealing Cold damage, the wielder deals an additional 1 Cold damage.
A Frostbitten creature that takes Cold damage will take an additional 1 Cold damage per turn of Frostbite remaining.
A Frostbitten creature that takes Cold damage will take an additional 1 Cold damage per turn of Frostbite remaining.
Insidious Cold: Dealing Cold damage with a spell possibly inflicts Chilled upon the target.
Weapon Enchantment +1
Ray of FrostClass Actions
Proficiency with this weapon type unlocks:
The air around this staff crackles with a cold, frosty wind - a power that has been divided for too long, and is waiting to be released.Quarterstaffs Versatile
Location - Mourning Frost
In order to acquire 
Mourning Frost you will need to locate and combine three items that are located in Underdark.
Icy Metal - Located in Ebonlake Grotto. Complete the Defeat the Duergar Intruders quest and you will be able to access the hidden room where the 
Icy Metal is located. Alternatively you can cast 
Knock on the Vines and gain access to it.- Icy Helve - located west of Selûnite Outpost. Carried by Dhourn who is petrified. You will need to defeat Spectator (Lv. 5) and loot the
Icy Helve off of Dhourn. - Icy Crystal - located in Dread Hollow. Carried by Filro the Forgotten (Lv. 5). After defeating him you can loot the
Icy Crystal off of him
After acquiring all three parts you can craft Mourning Frost in your inventory by right-clicking one of the ingredients, pressing combine and add the other two.
Discussion
Gale can absorb the Magic from this Item. If Gale consumes it, it vanishes forever. That is irreversible and unavoidable. But... don't be silly.
(There is better food for Gale: Ring of Color Spray, Frayed Drow Hood, Sunwalkers Gift, Everseeing Eye Necklace, Exterminators Axe; Hunting Shortbow, Kormira's Locket, Spiderstep Boots.)