Originally Posted by mogonk
So it's more effective against their ADC and MAYBE their support, and much, much worse against everyone else.
And it's more expensive.
Yeah, great item.
Well, keep in mind, the armor reduction is a debuff and not a static armpen, which means it might be more viable if a dual ADC meta ever evolves (because one could run BC and they could focus fire). As of now though, with tanky bruiser, mid building survivability and tanky bruiser jungle usually, it's hard to justify building it with the mass amount of armor running around. So I see what you mean, but the item definitely has standalone merits.