AP itemization is unfun
After the numerous nerfs to AP items, many of the once featured builds lost ground. Removing penetration from Abyssal made it impossible to stack flat pen and turned it into more defensive and team supportive item. Same goes to Rylai, with the low amount of stats whats left is its slow passive. Overall AP items have so low AP Rabbadon is no longer worthy. The only build thats in rise is around mana, but stacking that stat works only on a handful of champions. With the majority of items becoming super situational, cheap and low stats (protobelt, hourglass and the mentioned above) we've left with no strong items to be core for our build.
and
now.
with
and
being situational at best (AFAIK, i'm not a pro player. please correct me if i'm wrong. no flame me plis).