In addition to my previous comments, i think Satoshi should prepared for the full battle.However, he didn't.Because, he and his friends were busy because of the Hunter J and team rocket.There is no point the Hunter J ,the legend about Regigigas amd team rocket before the full battle .I tink J and Regigigas events should be after full battle.We should have seen the Satoshi's preparation for the full battle.If it was like this,maybe Satoshi might have used any defensive moves like Light Screen or status raising abilities.