The Champion
Story
I'm ready to face off against The Champion, and they've agreed to give me as many eyes of ender as I need if I can beat them in a battle. But immediately things start going poorly.
(This story text is not part of any puzzle.)
I've earned these badges, but it seems like I still don't have the types of things I need; I'll have to add something else to have a chance at bringing everything full circle.
Status: "New skill available: solve puzzle to unlock"
What skill do you need to defeat The Champion?