The Aurelion Sol build for Mid is Liandry's Anguish and Arcane Comet. This LoL Aurelion Sol guide for Mid at Platinum+ on 13.23 includes runes, items, skill order, and counters.
Aurelion Sol Counters
52.8%
(-1.3%)
33.8%
(-0.4%)
3.2%
(-0.8%)
1.7%
(-0.9%)
844
(-32)