I would like to see darius's...
Passive: 5% armor and magic pen + magic damage (0.1 AD per stack) per second. 5 second duration (max 20 stacks).
Q: Spreads Hemorage stacks+1. (i.e. if one person has 5 stacks and a second 2, and your spin hits both, they both now have 6 stacks).
W: Remove the CDR bonus. Small slow % (6/7/8/9/10), but it last as long as there are stacks. Cripple can stack with itself upto 5 times (30/35/40/45/50).
E: Remove the armor pen (now in his passive). Gives you a minimum number of stacks (1/2/3/4/5).
R: AD(1.5) + (1-3% max health * stacks). Resets on kill.
Now darius has more reason to build CDR, AD, or even AS instead of just tank.
And while his E->AA->W->Q->R can still land alot of damage, and will let him be an amazing finisher, it's not going to insta-gib a full health squishy.