This comp looks to take advantage of the Moonlight trait to hit a level 4 Aphelios. Statikk Shiv and Rageblade make his turrets proc a lot of magic damage throughout the fight. Hitting a Moonlight Chosen unit will also make it easier as you can drop a Moonlight unit, only needing to roll for 2 units instead of 3.
Once you find your core 3 star units, you can start leveling up to add in more synergies.
Additional comp tips
Sylas and Aphelios are the best Moonlight units, but if you find a Chosen Moonlight, it may be easier to find Lissandra and Aphelios instead. You could run other Brawlers in place of Sylas, but ideally, you would have 3 star Sylas and Warwick.
Aphelios really needs good items in order to pop off. While things like Shojin and Hurricane will make a lot of turrets, Statikk Shiv and Rageblade will deal more damage and will be much stronger late game than having a lot of turrets.