Ha! Berrys are Awesome! do you want a battle/me trade you a soul dew? If I give your latios soul dew that pretty much hands you the tournament victory, you know that right?
Have fun with that. If you really want to, you could hack 999 of those berries that make pokemon happy but lower their defense EVs since your Giratina has no defense EVs. Oh and if you even feel like repaying the favor, you could hack me a soul dew and trade it to me.