Originally Posted by Level 9 Zubat
All they have to do it make it's passives Unique and BAM, no more BC stacking.
Wrong on so many levels. People do not stack black cleavers because of the passive. The passive will always max out on 4. Theres no point in stacking it for the passive. Riot knows this. The reason people stack it because it has too many good stats. Theres absolutely no reason not to get it when it has damage, health, flat penetration, and cooldown reduction.
Also take into account that it builds out of the best early game item in the entire game and you essentially just created an OP item.