[Note: This thread may contain spoilers for various games.]
I recently had one of those Asmongold reaction videos playing in the background and heard him mention boss battle music. It's something I've also felt pretty strongly about in regards to a boss battle experience.
So: What boss battle music can you still hear playing in your head that either haunts your dreams or pumps you up for a fight?
Also bonus: If Ashes were to add in custom music for boss battles where do you think the limit should be? Only certain big lore bosses like ancients? Or maybe just world bosses? Or dungeon bosses too?