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Deals damage and has a 20% chance to confuse the target.
There is virtually no reason to use this move. The 17% overall confusion probability is not worth the 85% accuracy or the power drop compared to Return, Frustration, or Double-Edge. Tauros is a notable exception, due to Sheer Force boosting its Base Power to 117, making it stronger than Return and sporting no recoil unlike Double-Edge.
See this article for a list of moves that can cause confusion.
Return is an alternative with 102 Base Power and perfect accuracy.
Double-Edge is a stronger alternative with 120 Base Power, but causes recoil damage.