Thoughts on a new defensive hard CC item(s).

There are certain champions that destroy the enemy team when they don't sufficient hard CC, such as Master Yi, Jinx, Kalistar, Katarina, etc. In ranked games, they usualy won't become huge problems because people pick hard cc champs against them. But in normal blind games, once you're in the game, there's nothing you can do once they get fed if your team doesn't have cc.

In response to this, I propose 2 new stun items:

For brusier/tank: 2500g, 300hp, 40armor, active: Mark a target, your next auto attack stuns the target for 0.75s (90s CD) For Carries : 2700g, 40 Armor, 40 Magic Resist, active: Mark a target for 8s, if the target deals more than 40% of your current health for the duration, they are stunned for 0.75s, and you're granted a shield of 50(10*level) hp.