So i recently started playing Annie, and I was thinking maybe building protobelt on her. It gives annie the 3 essential things she needs, AP, CDR, and HP. The active on the item gives her a dash which is great for positioning ult. Which also fires out bolts in an arc that deal +35% AP on enemy champs. I don't see anyone building it, and it is pretty cheap at 2500. Is there a reason no one builds it?