Each champion take down causes that champion to deal 3% less damage to you permanently. Each unique champion can be killed up to 4 times, capped at 12% damage reduction. This way assassins are more durable when diving in.
Way too strong. This wouldn't be restricted to Assassins so everyone would take it.
Imagine a full build Irelia with an addition 12% damage reduction. Same for tanks.
Even if it was a keystone like Conqueror, it's too good to pass up.
Assassins don't need to be more durable when diving in. If they didn't have something to get them out of a bad situation, they wouldn't be assassins.
