PROS
-High Survivability
-Darius's Passive is just too broken
-Titanic Hydra and Black Cleaver is very good for Darius.
-Very Strong early and mid game.
-Spirit Visage buff :*

CONS
-Struggles against too much CC team.
-All-In champ(No escape after you go in)
-Your late game is very weak if you are not fed so you will need dependable teammates.

You don't need any teamwork come on don't lie to yourself.Just stack your passive and dominate everyone BUT then late game comes...

You will suffer and you will see that you cant carry and more because adc's will melts you like you are nothing.This is where teamwork comes.Darius don't have good skill to engage.If you can't caught someone with your e are so useless.You can't stack because they will have CC or adc will just destroy you.Then what are you gonna do?Its simple take Ghost and Flash(if u believe in yourself) kite with the help of Ghost and start running towards adc.Q E W R BOOM! adc dead then you will destory everyone.But if you went Teleport and Flash then wait enemy team stack up catch them off guard with your Flash E.(Your team should be behind you or you will be just Flash E them and then die instantly.)

If you are below Diamond i prefer you to go Ghost and Flash because teamwork is very weak in lower then Diamond.You just need to carry yourself.Even you take Teleport channeling time is 4.5 seconds so fight will be probably over after you come or let's say you come in time Darius don't have good abilities to help your teammates.So take Ghost carry your own game!!!