I can't tank
Not sure if anyone else has this but when i vs tanks in league, its always like me and my team can not kill them. IE when vsing Darius i can never kill him, NEVER! But when i play Darius its like i'm the adc getting one shot. Why is this. I building what i see on most tanks, AR MR and HP, but its never enough. Any tips?
isn't a "tank". He's a Juggernaut. A highly immobile champion, that if gets in range of you, will destroy you. Other examples are
(?)

. Champions that have a lot of cc, and are very good at engaging for their team and soaking up tons of damage.
, unless you're like extremely fed and he's way behind. They excel in melee combat. Their weakness is being kited by someone like
or
or most adc's in general. And some mages like
or
. As long as they build some sort of penetration
, this goes for adc's as well
.