User blog comment:Emptylord/Sandbox/Custom Patch Notes/@comment-1330314-20130815174259

Putting this on a new post as it's gonna be a little long-winded:

First off, it would be better if kept is unique passive, with a bit of rephrasing (something along the lines of "gain 50% of your critical damage as bonus critical damage"), as otherwise it would become stackable and provide a huge amount of AD and crit damage simultaneously.

The second (and longest part) is regarding : I think it should multiplicatively reduce critical damage by 20%, and here's why:
 * Currently, when factoring in the mastery, the average damage multiplier you get is equal to: (1-critical chance) + critical chance*2*0.9 = 1 + critical chance*0.8. With Infinity Edge, this rises to '1+critical chance*1.25.
 * By having Reinforced Armor reduce crit damage subtractively, the damage multiplier becomes: 1 + critical damage - 0.1 = critical damage + 0.9 (with a minimum multiplier of 1, preferably), meaning it might negate but would otherwise do little to mitigate the amplifier. With IE, the multiplier becomes 1.5*critical damage + 0.9, which is even worse.
 * By having Reinforced Armor reduce crit damage multiplicatively by 20%, the damage multiplier becomes 1+critical damage*0.8 again, returning to the old calculation. With IE this becomes 1+critical damage*1.2, only very slightly more effective than the current multiplier.

Forgot about, but since his chance of getting a soul is pseudo-random (as you said with TF), that should be fine.

Also, just because I'm picky as hell, you accidentally closed the ai template on Alpha Strike in the Stats section with a parenthesis instead of double curved brackets. :P

Btw, what are your thoughts on the suggestion to Gangplank's ult I posted below?