Hey, he said he wanted to improve English, I don't want to improve my Italian!
My battle cry? I don't have one, what I do if I'm about to do a trick or a steep drop is take a couple breaths and then beat my helmet with my gloves. Gets me full of rage and adrenaline. If I succesfully complete the jump/drop/etc. then I let out the loudest "WOOOO" I can!