After executing slashes using Riven’s 1st ability, Broken Wings, move towards the direction opposite to where Riven slashes so you can execute auto-attacks faster in between the Broken Wings casts. Other than that, you can use Riven’s 1st ability, Broken Wings, and her 3rd ability, Valor to cancel her 2nd ability, Ki Burst, and both casts of her ultimate, Blade of the Exile.