Scenario 1: Ei vs Itachi, Ei with only his right arm (his non dominate hand) and Itachi with his heart condition. Intel: Itachi knows his speed, Ei knows the power of his Totsuka no Tsurugi.
Scenario 2: Ei vs MS Sasuke (Five Kage Summit Sasuke), Ei with both hands, Sasuke with V1 Ei speed (he...