Unstable Clannfear is a skill located in the Daedric Summoning (which can be found in the Sorcerer skill tree). Unstable Clannfear is a morph of Unstable Familiar
Unstable Clannfear deals the following types of damage: Physical Damage. Which means that it gets buffed by the following blue champion point trees: Blessed, Master at Arms, Mighty, Piercing, Precise Strikes, Quick Recovery. Also the following red champion point trees protect against this skill: Hardy, Iron Clad.