The new AP items: 99 ways to build glass cannon
Morellonomicon effectively was split into 3 items, each focused on damage and CDR. All 3 of them are cool items but ultimately glass cannon just like Morellonomicon was.
There are some health options but late game it doesn't help you survive in most situations. So these items you just buy for their utility or damage as well.
RoA is the only option that gives you some health sustain but it's a joke compared to what AD champions can get from lifesteal and death's dance.
To get any meaningful durability you have to get items with 0 AP like Abyssal or maybe a Deadman's Plate I guess.
I mean, all we have is Hourglass and a bunch of glass cannon items, some of which have minor utility. That sums up mage itemization.

is a solid choice that a lot of people don't think about either!
is super underrated, and synergizes extremely well with