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Deals damage and has a 10% chance to lower the target's Speed by one stage.
There is not much competitive value in this move. At all. It's outclassed by virtually every other Normal-type move in the game, thanks to its horrible Base Power, and its only side effect has a very low chance of happening.
Return has a higher Base Power and perfect accuracy, making it a much more reliable option.
Double-Edge is a much more powerful alternative; however, it inflicts recoil damage upon the user.