The Black Cleaver

Gold 3000
Dealing physical damage to enemy champions reduces their Armor

+400 Health
+40 Attack Damage
+20% Cooldown Reduction

UNIQUE Passive: Dealing physical damage to an enemy champion Cleaves them, reducing their Armor by 4% for 6 seconds (stacks up to 6 times, up to 24%).
UNIQUE Passive - Rage: Dealing physical damage grants 20 movement speed for 2 seconds. Assists on Cleaved enemy champions or kills on any unit grant 60 movement speed for 2 seconds instead. This Movement Speed is halved for ranged champions.
Builds From

Phage Attacks and kills give a small burst of speed 500 Gold Kindlegem Increases Health and Cooldown Reduction 400 Gold
Builds Into

The Obsidian Cleaver Dealing physical damage to enemy champions reduces their Armor 1000 Gold