User blog comment:TheCarrotSaysYumYum/Why Lisanna is Fairy Tail's worst character~/@comment-1359322-20140104083147/@comment-7418318-20140104095530

For me that whole fight never made sense from Azuma's point of view.

On one hand he states that he wants to fight Mirajane at her best, but when he notices that his tactics of putting a bomb on Lisanna is actually distracting her, he just keeps rolling with it?

It would have made a lot more sense to put a remote detonator on it, that would explode if Azuma wins and would disarm if he lost. That way he could have motivated Mira into giving it her all, rather than constantly looking at the timer, needing only to worry about if she's able to defeat him, rather than worrying about being able to defeat him in time.