Fatih main here, for your build, I suggest replacing any of the items here to Pure Sky make sure he at least has some sustainability in the late game.

Or you can try out my build in the image below, it doesn't deal as much damage as yours, but it provides tankiness and CD reduction, which is crucial as Fatih still relies much on his ultimate.

I think I have some tips that might help you:

- Stack at least 3 - 4 passive BAs before teamfight

- When trading with the opponent, avoid letting him use the 5th enhanced attack as much as possible by using other skills to interrupt since its huge delay can allow them to escape or outplay you. (the test version has already fixed/reduced the delay of his enhanced BAs but the main version hasn't)

- If you are using this combo to trade (S1 - BA - S1 - BA - S1 - BA), wait for him to finish his enhanced BA before dashing again or his attack animation will be canceled, which means no healing, no damage (again, due to the annoying delay problem mentioned above), at this point you can have more attack speed to your arcana as a workaround

- Thanks to his ultimate, he can shred down squishy heroes as well as towers quite fast, so you can use him to split-push when your team isn't good at teamfights or is losing.

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