Instead of half-assing Eve let's just go all the way
The problem: The new jungle is kicking Eve in the teeth.
The solution: Just remake her already for the love of God.
Innate- Malice and Spite: Eve feeds on suffering and life-force alike, recovering health and mana equal to (percentage) of the Max HP of champions and large monsters on kill/assist.
Reason: Well would you look at that. Eve can actually sustain in the jungle now! This is also the return of her nifty old passive heal that was once on her Ult. This tweaked version should allow her to do her thing without too much issue.
Q- Hate Spike: Damage is now Physical and applies OnHit effects to the first enemy unit hit (think Samurai Bob's poke-attack).
Reason: Hey look at that! Eve can actually itemize for penetration now! This takes the change that was made to E to its logical conclusion.
W- Dark Frenzy: Activating this ability now grants True Stealth for 3 seconds.
Reason: This change improves Eve's slipperiness in combat and helps with those surprise-ganks Pre-Six. Warding against her early game will actually be possible now! That opens up a ton of kit power to spread around.
E- Ravage: Unchanged. This ability does its job just fine now that Eve has a coherent damage type.
R- Shadow Walk: Passive: Eve is invisible so long as no one is looking at her. Higher ranks in Shadow Walk decreases her detection range. Upon breaking stealth, Eve gains a significant flat armor penetration bonus for (duration). Active: Eve Charms a close range enemy champion for two seconds. Additionally, she renders herself and all nearby allied champions invisible to allied vision for 10 seconds while silencing the target's ability to Ping.
Reasons: A charm for the vampire/succubus thing. By removing the nuke from Eve's Ult she's cemented into a sustained damage offensive pattern because playing against high burst out of stealth is just awful. Moving her passive stealth to her Ult gives the enemy team time to actually begin warding against her rather than Eve applying massive pressure just by being in the game.
The active portion gives Eve some reliable CC and a neat, unique mechanic that's a ganker's wet dream. Someone derping around alone in the jungle? Gank that fool and their team probably won't even know they've been jumped until the 'An allied champion has been slain!' pops up on the screen with Eve's smirking blue smurf face. Now clearly 3rd party voice chat programs would reduce the effectiveness of this ability, but I'm honestly okay with that. If Riot can release champions that practically require voice chat (sup Kalista), then I think a champion that would thrive in unorganized games would work just fine.
I understand that the AP Eve folks probably wouldn't like this. I'm aiming to move her back toward what she was before Riot's original remake because, as mentioned already, burst out of stealth is awful. The kit outlined above has a much better flow to it than the train-wreck Eve has right now.
passive
0.5 second
q
temporary invis? no, she already has invis