I have a thought about Athene's
Okay, Athene's has a bit of a history. It used to be a midlaner item, but it was always competitive with morello's so riot kicked it out of mid lane. Riot has tried it as a support item, but with redemption and locket, a support just can't afford it unless the game goes really long. Even then, you might want something else for different stats/effects. AP supports want full AP items. Passive supports what more supporty items. Athene's is kind of left in a weird place.
So I'd like to suggest something else. Make it an AP jungler's item. It starts out with 40 AP, and every time you clear a camp you get +5 AP with a cap of 100 or 120. Diana, fiddles, Aussie, and Evelynn could make use of it.
Also I'd change the build path to
+
as junglers would appreciate some movespeed. This would also let it fill the role of the AP+MR item that junglers will default to.