- Arch-Mage's Quarters at the College of Winterhold.
- Can be looted from Hagravens.
- In the shack at Witchmist Grove – There are about 5 feathers on the floor.
- On a table in Jorrvaskr Living Quarters.
- Hag's End - 5 or so in the pit covered with hay. Warning: a Frostbite Spider will drop from above when the pit is entered.
- Inside Serpent's Bluff Redoubt – 5–6 in a room behind the pressure plate-controlled door.
- One on the counter in the basement of Anise's Cabin.
- One on a cabinet on the ground level of Anise's cabin.
- Random find in apothecary's satchels.
- Rare find on high-level Falmer.
- Can be bought from alchemist's shops, like Arcadia's Cauldron, The White Phial, etc.
|Damage Magicka||Fortify Conjuration||Frenzy||Weakness to Shock|
† multiple effects
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