These buffs are in conjuction with a path that removes about 80 AP from mages, and reshuffles the kits, as well as replacing jungle trinkets.
For one, there is no red trinket, so no on hit bonuses.
Second, There is no CDR on Morello anymore, so the go to items for CDR on her are going to change.
Three: her Win rate right now is 49% because the nerfs hurt her fringe ability to kill barely kill kills. It also slowed down her jungle clear by about 8 seconds vs other junglers, of which she's already a tier 2 clearer in terms of speed.
Furthermore, Eve relies on
to Stay relevant in a game and get that 49% the buffs are to encourage getting away from that.
Realistically, I think the 8.4 Evelynn build will be something like this:
Spellbound Orb or so After the 8.4 Change.
The neat thing about 8.4: Luden's loses move speed but the jungle item doesn't (Asfaik). So you can get the Jungle Luden's Echo and its move speed, Lich's Move speed, AND Spellbound Orb's Move speed, which includes a powerful engage active (up to 50 AP/50% Move speed bonus)
If you put it on Ingenious Hunter, it's a huge item with an 8 second duration that has a 36 second cooldown.... perfect for Evelynn.
I'm an off meta player myself, and my dream full build will probably be this:
Spellbound Orb
/other boot.
That's a potential ~ 861 AP with + 17% move speed + Mobi speed pre Drakes, pre Spellborn Activation.
Post, it's 931 AP, with 67% Move speed boost.
I could get higher AP on a different build, but that move speed is insane for Evelynn ganks.