The New Black Cleaver Has Too Much CDR
With a slight decrease in damage and flat ad pen, the new cleaver now gives MS, more % ad pen, and 10% more CDR. This items reminds me of Spirit Visage when it was released. It became the default item for a lot of champs simply because it outclassed so many other items. The reason for this is the 20% cdr. There are very few items that provide 20% cdr mostly being support items, mana regen items, and frozen heart. Besides frozen heart which isnt good to rush early in most situations due to the lack of health and low as on most champs early, the items all give noncombat stats. This is because CDR is one of the best stats in the game and scales with itself. Black cleaver is the only item, like spirit visage before it, that gave 20% cdr on a item that gives full combat stats.
The two champs that benefit the most from the black cleaver change the most are Talon and Riven. By having 20% cdr from black cleaver, this allows them to skip cdr boots and get merc treads instead. This hugely reduces their vulnerability to cc, one of their only weaknesses. This will also become a must rush item on champs like garen, darius, renekton, an others simply due to how all in one this item is.