Hammer Arm just delivers far more protection. It is a little sluggish, however it's only weak to Grass so it is not like it can get Significantly injury anyways. There are many exceptions to this rule needless to say. When you've got Confuse Ray and Shadow Ball, which is great. https://travispcssd.pages10.com/the-smart-trick-of-case-study-analysis-that-nobody-is-discussing-71766997