Unsealed Spelbook on Zoe allows you to adapt to the needs of the game with an early Ignite for kill pressure as well as TP to lane rotations. The extra Summoner CDR also makes you incredibly difficult to gank.
Magical Footwear's raw gold efficiency is great for empowering your mid game, letting you hit that 1.5 item power-spike just in time for objective fights.
Minion Dematerializer helps you keep up with aggressive lane clearing in the early game to match roams and side lane fights.
Cosmic Insight's all-around utility is great for pumping out a bit of extra DPS in teamfights and remaining safe with extra Summoner CDR.
Transcendence's mid-game CDR allows you to hit 30% CDR on just a Lost Chapter item completion so you can opt into raw AP or Magic Pen faster.
Scorch's early game chip damage can be great for setting up jungle ganks and keeping your enemy laner in kill threat range. the extra bit of damage can be the difference between a kill and them getting out alive.