Dark is better than light. If you level your sword up enough and know double slash nothing can stand in your way. when you make a transformation in tournament mode it caries into your next round so just keep using double slash until you almost die. Leave the arena upgrade your sword do it again. Using the light transformation only drags out combat.
 "LRD: Rebirth"){kind=icon}
 "Homerun In Berzerk Land: Berzerk Ball"){kind=icon}