All Around Armor and Magic Pen

Think about this: with there being a sudden increase in tank buster builds and the famous youmuus/black cleaver build, it has brought to my attention how, not necessarily "looked over", but underappreciated armor and magic pen really is by riot and a majority of the player base. Magic pen is given to Haunting Guise and built into Liandry's with only +15 magic pen, sorcerers shoes also having +15, and Void Staff's passive also being magic penetration. That is 3 full items that give magic pen. Armor pen fares better but not by much having duskblade , dirk , and maw giving +10, youmuus giving +20, and, of course, Black Cleaver's passive. That's 4 full items giving armor pen. The Korean Lucian build works because of heavy armor penetration which is easy to achieve due to there being very little armor pen items and thus, each item having a high amount of armor pen.

MAGIC PEN There's not a whole lot I can say about magic pen as it is small aspect of the game, but, what I can say is that we need more of it. With the addition of more magic pen summoners will have to think about whether to buy sunfire or spirits visage against a 3 ad, 2 ap team, as opposed to buying armor because theres more ad. Now I'm going to say the same thing for magic and armor pen: more items need to be put in BUT, the penetration PER ITEM should be decreased. This way you can't build full ap and only have one magic pen item to be affective against Magic Resist. You'll need to skip the rabadons and maybe instead go for a void staff. Less ap but more magic pen. And yes i do realize that more magic pen would require the addition of more magic resistance items as well but that's a topic I'm not going to get into right now.

ARMOR PEN Now THIS is the main focus of this post. Armor Pen. As clearly shown through the (at this time) new Lucian build, armor pen has a LOT of potential. As I said earlier, buying youmuus and black cleaver gives you a crap ton of armor pen as there are only 4 items in the game that give this feature. Now don't get me wrong, I don't want more items like the ones we have currently for armor pen, I want new ones to give less and the current ones to get tweaked. My main focus id youmuus. This item is know for its active which has many uses, a decently short cool down, and is something that you would use every fight without thinking about the consequences because, well, there are none. I think that the armor pen should get reduced from +20 to lets say +10 or maybe even less, a decrease in ad from 60 to 55 (nothing huge), price increase from 3200 to 3400 or more, and an increase in the active cool down from 45 seconds to 60 at minimum. Well you might be thinking that I just completely ruined this item. Which I did. But what'll make it a more strategic buy is giving a percentage increase in TOTAL armor pen on the active. If more armor pen items are put into the game (hopefully they will be) then this active combines with armor pen from other items. And when I say "percentage increase" I'm sayin 10% or something small like that. If it was anything more then I'd say to reduce the active duration but I think that's a little too much.

Obviously there wasn't much to say on this topic due to this being a small aspect of the game, but I strongly believe that more armor and magic pen should be put into the game; maybe even during the upcoming assassin update as assassins use armor pen a lot. But what do you guys think?