How to rework Darius into a more teamfighting champ, who gives you a chance to fight or flight.
Darius the Hand of Noxus
New Passive: Hemmorhage: Darius's attacks and spells(excluding Q) cause his enemies to bleed, dealing magic damage over 7 seconds, stacking up to 7 times. He debuffs his enemies at 7 stacks, nullifying the enemies base health regen, not all of it.
New Q: Ground Slam: Darius slams the bottom part of his axe into the ground, dealing damage and stunning enemies around him in a PBAOE for 0.5-1.5 seconds.
New W Active: Decimating Slash: Darius slashes at an enemy in front of him(single target), dealing physical damage. Depending on if the enemy is turning towards or away from him, gives him different effects. Towards: Darius slashes his opponents arms, slowing their attack speed by X% for 3 seconds. Away: Darius slashes at the enemies legs, slowing their movement speed by X% for 3 seconds.
New E Passive: Thrill of Combat: For every enemy champion on the screen within 1000 range, Darius gains 2/3/4/5/6% reduced damage, capping at 10/15/20/25/30%.
New E Active: Battle Roar: Darius cannot activate this skill unless he has been in combat within the past 2 seconds, when activated his auto attacks and spells deal 20% more damage(excluding his ultimate) and reduce his opponents armor by 15% for 3 seconds, and if Darius activates this skill while there are 3 or more enemies within 1000 range, he gains 50% movespeed for the buff duration and his allies gain half, this debuff cannot be reapplied for 5 more seconds, this buff lasts 3 seconds.
R: Noxian Guillotine: Darius leaps to target, dealing 30/50/70(+2% of enemies max health) in true damage, capping at 210/350/490(+14% enemies max health) in true damage with 7 stacks, growing exponentially.. If he deals the finishing blow the skill refreshes for 20 seconds, gaining a full reset at rank 2 of his ult(level 11). If Darius deals the finishing blow with this skill, all allies surronding him gain a 20% damage increase for the next 3 seconds.
TL:DR If you decide to fight him, he will punish you, but you then have the chance to run away, if you are running away from him, he will slow you then you will have to fight him or get destroyed from behind. His ult buffs his allies along with his E, he can no longer bully the crap out of melees in lane and is still susceptible to kiting immensely, but makes up for it with a great teamfight/presense in game. He will have use if hes behind.