i still focus on Bayo vs Link to even focus on how Kratos is going to destroy war at full power or Dante will. so
I forgot Four Swords Link but its bascically the same routine just that Bayo has to work faster now. but if it comes to that she can't then she will have to hold him off long enough for her team mates to deal with him.( Traping them in Iron Maidens and bffering could work the same as well.
Now onto War Kratos now has the BoO back and his god powers except size shift and Dante has Yamato and Sparda form.
War's invinciblity is mooted by the fact he can't be saved from Ring out via deminsion sealing from both the blades.