Some champions are completely shut down by CC. i.e. Master Yi, Tryndamere, Draven, Pantheon, etc. These champions have little to no answer to intense, high amounts of CC. Mercury's Treads and Quicksilver Sash can only do so much. I propose an item that would be a late game addition to these AD champions that would grant protection from CC while not completely taking away an item slot for either complete defense, or a lack-luster contribution.
Negatron Cloak (48 Mag Res; 740 Gold) + 900 Gold to upgrade into-
Quicksilver Sash (48 Mag Res; 1640 Gold)
-Unique Acive: Removes all debuffs from your champion-90 sec CD
Brawler's Gloves (+8% Crit Chance; 400 Gold) +
Dagger (+15% Atk Spd; 420 Gold) + 375 Gold to upgrade into-
Zeal (+20% Atk Spd, +10% Crit. Chance, +10% MS; 1195 Gold) + 800 Gold to upgrade into-
Recipe= Quicksilver Daggers (52 Mag Res, +25% Atk Spd, +15% Crit Chance,
-Unique Passive: For every CC effect applied to your champion, your champion gains +15 Tenacity. Lasts for 1.5 secs and stacks up to 3 times. (Tenacity reduces the duration of stuns, slows, taunts, fears, silences, blinds and immobilizes. Does not stack with other Tenacity items.)
-Unique Active: Removes all debuffs from your champion- 90 sec CD.
This item would be a late game, good contribution to AD champions seeking to counter-act intense, high amounts of CC. The less CC applied to your champion, the less effective this item would be. However, the buff only lasts for 4.5 sec maximum, but only if your enemy is perfectly timing they're CC- which they won't. That would make the actual average duration of Tenacity about 2 sec give or take. Since it is Tenacity, it doesn't stack with other Tenacity items, like Mercury's Treads, which would allow summoners to pick a different pair of boots. This item also is not solely defensive, which would make it a good pick for AD champions. I made the buff scale high, but not stack so that it would not be op for ranged AD champions like Caitlyn or Miss Fortune, who already have tools for escaping. The buff also has a short duration so that any AD champion cannot just dive into the enemy team, ignoring any and all CC. At maximum potential, this item might let a heavily fed ADC jump into the team and assassinate a problematic squishy champion. This item could potentially be problematic for Dr. Mundo, Garen, Irelia, Singed, and Trundle if they stack cleanse with this item, as well as the Juggernaut Mastery from the Defensive Mastery Tree.
I hope that you like this item, and consider it for a future update! Thanks for the forum posts Xypherous!!