i used sun ce, but keep in mind that if you max out your stats, all the characters are virtually the same.

if you are using lu bu, be sure to obtain as many titles as possible, it will make things easier, especially if you use speed weapons, you will be able to sap life points when you attack an enemy.

i did most of mine on foot, weapons i had were any 'EX' capable weapon and the dragon spear.

[] [] [] [] /\ would be the best way, by doing this constantly you will be able to juggle and clear many enemies around you.

which character did you use for xtreme legends for the nightmare weapons and titles. im thinking lu bu might be the way to go but a 2nd opinion couldnt hurt