Double Morellonomicon after AP items update?
The new Morello seems really strong when you pick it up around 10 minutes, with limited mana costs on your low level spells - 20 % cdr, 80 AP and 400 mana for 2100 gold is really good value. If you get two, you will get 40 % CDR and a large enough mana pool if you finish the game (somewhat) early.
It seems like a very good alternative to Tear -> Morello, where you will basically be handicapped until 23 minutes, but then will be much stronger lategame - but games rarely goes that long nowadays.