Place it as the main theme for the Knight segment, opening with the Inception Horn to announce the entrance, then letting this track carry the fight itself. Close the sequence with the FNAF Jumpscare Scream when the Knight lands its final blow, so the edit moves from entrance to battle to final hit.
Über diesen Sound
This 38-second excerpt is Black Knife, track 30 from Toby Fox's DELTARUNE Chapter 3 and 4 soundtrack, a tense, driving piece written for the fight against the Knight. It feels urgent and ominous, like the moment a powerful opponent steps forward and the battle truly begins.