User blog comment:Asylumking/Who makes you salty?/@comment-33536623-20150226031208/@comment-3974211-20150227044435

Nasus gets far too many offensive stats for free. 10-20% life steal, 20-40 armor penetration, up to 300 attack damage (more versus higher-health targets), and infinite pseudo-AD on his Q. You could even argue that his Wither removes any need he'd have for buying movement speed, Frozen Mallet or Iceborn Gauntlet (although the ability does have some down time, and it's always nice to stack your advantages). Like... what is the point in Spirit Fire's armor reduction given the amount of raw damage he gets for free? When Cassiopeia's rework first came out I almost never bought magic penetration because the raw amount of AP I had was enough to cut through tanks anyway, 70% reduced damage or not.