I'm interested in picking up new Eve mid. I see 
as a core item so far, and I do think I need to pick up 
because every mage that has a mana bar needs it these days, but I'm not too sure what else to get. What has been successful for you guys so far?
is bad as a first item just like 
is bad as a first item.
Both items were created with the idea in mind of helping other AP items and taking power from other AP items. So, you don't want to build it first.
What I see as core items are 
and 
. But, she has very bad waveclear in mid.
If you Q a jungle camp, you get reduced cooldown on Q to almost having instantly back up.
If you Q a minion wave, it goes to normal cooldown, making your wave clear slow as fuck, which is a huge problem in the midlane. Unlike ad champions, you don't get 
Also, your mana costs a a big thing. So, expect an mana item first in your build.
Such as: 
or
But you can mitigate some of that shit wave clear with 
So, I'd expect her build to go more on the lines of:
or into into into whatever.
Her laning would be god awful.
TP/Flash dark seal refillable into another dark seal -> catalyst build
