Why pick Darius now?

Current Darius is picked to bully and shut down whoever you are laning against. They put all of his power into a new part of his passive and his ult. Lets look at what his new passive and ult do and then let look at the trade off for that power.

Whenever he gets 5 stacks of his passive on someone he enters Bloodrage and during it he gains 40-200 bonus Attack Damage and applies max Hemorrhage to enemies hit. However, the damage on his bleed went down, it now does physical damage instead of magic and he doesn't get the speed boost.

His new ult is pretty cool. At rank 1 and 2 all reset dunks no longer cost mana so you can dunk 5 people for 100 mana. Still has no cost at all at rank 3. It also fears all minions around when you kill a champion with it which is cool. However, the damage went from 100/200/300 from 160/250/340.

So now lets look at what all we trade for those.

His Q now heals him but everything else about it got nerfed. Lower base damage (ratio went up though but that hardly matters now), has a cast time, the inner ring no long applies a bleed and deals less damage. On a side note his current rank 1 Q has a base damage of 105. His new Q at level 5 has a base damage of 100.

His W does less damage but slows for more but doesn't last as long. It also no longer slows attack speed, doesn't get its cooldown reduced by how many stacks are on them but has a lower cooldown.

His E has a faster cast time and applies a slow. Also they said they fixed how buggy it was.

Everything bisides his E that got buffed also had a nerf that made the buff not even worth it. This seems to be how it is which the other three champs that they are working on. They are going 1 step forward and 2 steps back on every ability they "buffed". I was excited when they announced they were looking at fighters and their items but little did we know they meant they were going to be nerfing it all.