The Defender is a song from the Shovel Knight soundtrack. It is Music Sheet #22 and can be found in Tower of Fate: Ascent, Room 8.
It's shovel versus shovel! Can your old rival be reasoned with?
- "Bard: Let's see here... Oh, you found "The Defender"! I like to keep my songs simple and less intense, so that I can really highlight the dramatic moments... ...HAHAHAHAHA! I slay myself."