"Evolution, Chapter Six: Quod Sum Eris"
Cyclops reluctantly gives Wolverine the Muramasa Blade, after Emma examines Logan's memories and experiences all of the violence Sabretooth has knowingly perpetrated against women.
After reconsidering all other options, Wolverine confronts Victor. Sabretooth submits and Wolverine decapitates him, ending their age long rivalry.
Wild Child then appears and explains that everything Wolverine has recently learned and done is because of Romulus. Wolverine doubts Wild Child, but then catches the scent of a shadowy figure behind him, Romulus.