Talk:Xin Zhao/@comment-216.215.60.16-20101209232240/@comment-207.81.32.143-20101214165144

Percentage based attacks always suck lategame, especially when they don't scale, and double-especially if they have no big reason to get Pen items like Malzahar does.

Why? Natural MR and Armour, for one, will severely reduce the damage. Tanks will also have MR or Armour items, so the effect decreases further. On squishies, your autoattack should take away more health than your Ultimate does anyway (20% of 1500 health isn't much if you have 400 AD already.)