User blog comment:StrategicMagic/Xerath and AD Mids/@comment-24.34.227.64-20130101174027

He doesn't have the sustained damage to duel an AD mid, so if they build some MR/Health you're screwed. So if you can't poke them enough and/or they engage with high health, you're screwed.

Take Talon. He jumps on you, silencing for a second, while dealing tons of damage with Rake and Noxian Diplomacy. You try to stun him, but he stealths in his ult, dealing even more damage. Your passive doesn't really give that much armor, especially early game and especially with the prevalence of Cleaver.