[Discussion] You are striving to become the MC of your favorite action show. What signature move do you adopt to rise to the top?

You are a lowly background anime character dreaming of one day becoming the MC. But before that you need something that will lift you up for your mediocrity. You need a special signature weapon/attack/move to defeat your enemies! What is it, how do you make/create it and what does it do (and optionally, how does it work)? No deux ex machina type of magic please. Sci-fi is ok.