BATTLE music time. We have some Big mac, chiptune, and Electronic/drums and bass! Actually, I don't think he last one has anything at all to do with battle. You try finding three matching subjects in music though!
1.) Bagpipe Brony - Big Mac's Fighting theme (Party With the Apple Family)
2.) [Chiptune] Tengen Toppa My Little Pony
3.) WolfOfSadness - Way More Than Rare