dude the alastor combined with Dante's D.T mode would make a hell lot more of speed...Dante is kinda speedy himself he has lots of exp and I bet can avoid most of Virgil's moves...The sparda is long and extend able and would take a lot of damage..Dante will just have to shield himself with the sparda and the Yanmato would do no harm...One slash would swipe out Virgil's life...The sparda is an almighty sword