Weird formation advice

[Jordan Veselinov Popov]

Hey guys!

I am to play against this opponent with a weird formation. I've seen those kinds before, but used by players with much weaker squads than mine. However, he is a bit better than i am and i wondered what formation should i use, besides the obvious attack on the left flank.

I have attached a screenshot with his formation below.


Thank you in advance!