u/CanadianAdim

This skill only existed for 3 games Monster Hunter G, Monster Hunter Portable/Freedom, and Monster Hunter 2 (dos). It does the opposite of Sharpness +1 and decreases your sharpness bar by 50 points. Technically it's not a useless skill as it can be used to negate negative affinity (-50% attack modifier) since when you reach yellow sharpness or lower all affinity is changed to 0 both positive and negative (changed to happen when you reach red sharpness in MHP2/F2 and MHP2G/FU).