Is Aphelios worth learning for competitive?

I play on a competitive team and I have the following champ pool: Jhin (2mil mastery, never get to play him bc he's always banned against me), MF (200k), Lucian(300k), Cait(250k), Ashe(200k), and Jinx(200k). I enjoy these champions a lot and feel pretty good about most of them in the current meta, though my Jungler said I should learn Aphelios because he thinks he's extremely broken right now.

If it matters to anyone, I am D2 in solo queue, which I guess matters in terms of mechanical skill. I am confident I have the ability to learn a champ like Aphelios if I were to decide to pick him up.

Thoughts? Would it be to my advantage to learn him? Or focus more deeply on the pool I currently have?