as you know bandos cnanot move, thats what im gonna use my advantages at, this is what you will need
1) just you and no one else
2) alot of str bonus
3) prayer
4) karils
5) d hally
as you fight bandos with the str way, you go all out and when hes hitting really good jsut step away, since he cannot move, allowing you to bank etc
Karils way:
karils is very simple just hit him forma very longrange with the d hally, so he cant touch u, or you can range