Like it really doesnt make sense why you can build 100% crit CHANCE. It's not a CHANCE anymore. It's guaranteed double damage or guaranteed 225% damage because 
. Once an adc completes a build with 100%crit you literally cant even get close to them. They will oneshot you.
It caps at 100%.
Behold for the savior has arrived
Not even slightly true, but sure.
It's because crit champions sacrifice reliable damage until they reach that point(or Infinity Edge at least). If an ADC hits 100% crit chance, they're at the stage of the game where they're meant to kick your trachea down and out of your poop hole.
There should be a soft cap and diminishing returns on Crit and LifeSteal/SpellVamp
Cap should be 40% on LS/SV and 70% on Crit with Crit champ caping at 80%
It requires 4 items to get there. Meanwhile other champions can oneshot at 0 items.
Maybe thats the reason they're called ADCs... And having 100% Crit chance means you have 4 crit items and usually you build boots before fullbuild. So yeah, they have dmg, but no resists, hp, lifesteal. Take basically any assassin and unless its Trist that kills you before you get into your spells range you're ok. The only problem with crit is yas that doesnt need to waste 2 item slots with crit items and rather builds BT, mallet or sterak so he does more dmg and is also tanky.
