I disagree on the level 4 talent. Vile cleaver doesn't infect a target like slam does, but it creates a vile poison (same as your passive) on the ground for 5s. It refreshes the poison (which lasts 3s) as soon as anyone steps on it. This can make it so 1 puddle of poison can do 8s of damage instead of 3s as from the cleaver. Not to mention that you clear waves far faster than with the cleaver talent as it only takes 1-2 attack to infect a lane and keep reapplying the debuff without needing to...