Aatrox Rework
even on release the melee version of vlad had some troubles, his kit was a bit janky and took too long for him to find a place to excel at before the nerf hammer hit home for sustain champs. here are some thought bubbles to help out a bit.
Passive-Blood Well- His passive is OK, as 2nd life kits go anyway, if we made his attack speed a separate passive that builds up the longer he is in combat rather than the amount of blood in his blood well it might help balance him out a bit.
Q- Dark Flight- not the strongest of gap closers, it's animation is slow it's range is not that high but it gets a nice little knock up and damage to kinda help balance that out. maybe buff it's animation speed a little or it's range. or maybe tie in it's speed damage and range the more or less blood he has stored up. make his flight speed and distance faster the less blood he has, and make it's damage and knock up duration stronger while he has more blood perhaps.
W- Blood Thirst/Blood Price- this skill is kind of troubled, it has the normal three hit trigger effect riot loves, but the effects are a bit too awkward to balance correctly. a skill that heals for any amount is already powerful, even if that heal is considerably weak, and early on most players will not use the Martyr version of the skill as it does a little too much damage back to himself for a pretty weak enhanced attack. this one needs a complete rework there's not much to be done to save it. New W can and probably should remain a passive effect on the three hit system riot balances around, make every third attack shred an increasing amount of damage based upon his current blood store, and scale off his physical damage and maybe even some bonus health thrown in for good measure so long as the damage is not overwhelming. maybe make the third hit cost HP but then refund that HP+X% more based on blood well store and if you hit a champion or big creep.
E-Blades of Torment- this is another skill that needs to kind of be reworked, the animation again is pretty slow for what it does. it's damage is kind of meh, but the slow is very nice especially considering that it can effect an entire team, but in a realistic team fight the odds of you slowing down the whole enemy team with this skill is pretty low considering missile speed and width. if we made it a single target skill that did some armor shred and move speed reduction, with a decent cooldown and an enhanced effect based on his blood store it would probably be a lot neater to his kit, considering the possible changes that can be made to his Q. this would make him a bit more of an effective duelist without giving him an abundance of built in healing that can easily become toxic to game play.
R- Massacre-i love his ultimate, it's got a cool name, and a decent effect. the only thing i would even consider changing is maybe add in an effect that gives him bonus blood well stacks, and maybe shift the old life steal effects into his ultimate.
i'm not sure this would make him top pick for jungle mid or top, but some of these changes would certainly make him less awkward to play and a bit more viable to say the least.