Oh yeah

You forgot Athenes/Ardent for the extra heals.
I would rather have a lot of ap to benefit more from the passive ( dat dmg reduction tho)
4% reduction per 100 ap
And with twenty trillion AP that makes A lot of reduction
How do I reach that amount tho? :P
No idea, probably need Deathcap or something Which you already have. Nice.

Out killed both carries last game
http://s3.favim.com/orig/44/drink-harry-no-regrets-styles-Favim.com-370632.gif#no%20regrets%20gif%20500x281