I will learn you - A loud, stupid promise you make when you think you're going

A loud, stupid promise you make when you think you're going to win, but you're just going to make a mess and everyone else will laugh at you.

I will learn you, and I'm gonna make it look easy!

I will learn you, or I'll die in the middle of a fight!

I will learn you, and I'm gonna do it with my whole team!