Soul Fist (4e Feat)
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Your hands are implements.
Prerequisite: Improved Unarmed Combat
Benefit: Your hands can be used as implements with which you are proficient. For a hand to be used as an implement, it must be empty, but can still be used as a weapon. Each hand can be enchanted, and may be considered any kind of implement for the purpose of choosing an enchantment. Your hands are not destroyed when disenchanted.