Formation that I used to beat Khan:

Herja - x - Flavius
Lancelot - Blood - Main
x - x -x
Sub: Queen Pent

This formation was originally posted by Pirate_1360826 in a couple other threads.

Using this formation I beat Khan in one try and also happened to recruit after beating him in that first win (the recruitment of Khan was probably luck, but feel jealous people feel jealous).