How hard is it to change the % pen on 
and 
?
Answer: Very simple. Do a few PBE cycles with some different values and change between armor/mr to bonus armor/mr and see what happens. I can almost guarantee you will find a better version than live where these items are no longer 100% necessary.
Edit: I'm not saying this is a 2 second fix that can be pushed to live. I just think it would be worthwhile to mess with bonus vs total armor at different percentages on PBE.
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Leave alone. It's the last thing assassins have that are not subpar to AP items...and also, armor is cheap, a lot cheaper than MR, so kinda makes sense for AD to penetrate more?
I agree that % pen needs to be looked at, hopefully made not 100% necessary (preferably, necessary on marksmen but not assassins). However, I would NOT consider anything relating to items that are core on every carry to be "very simple."
The problem with Void/Whisper is that they're anti-everything items.
To make them into anti-tank items you would want to have 'em build out of Longsword/Tome and a high combine cost. They would grant very little AD/AP, but a ton of bonus resist penetration. That would make them largely ineffective against soft targets, but great against resist stacked folks. If you put them at around 50% bonus resist penetration that would have them breaking even at about 200 resist on Armor and 180/100 MR depending on whether or not the champ has scaling base resist.
in the past when something was 100% needed riot got rid of it... i think we need to say good bye...this would open it up for creating new pen items altogether
I can almost guarantee you will find a better version than live where these items are no longer 100% necessary.
Incorrect. So long as there are tanks/bruisers, these items will always be 100% necessary.
