Complex sentence: It was after this event that his demonic guide the Violator, who appeared as a clown, revealed to Spawn the purpose of his life and fought him, but had his battle interrupted by Malebolgia.
Split into simpler sentences: It was after this event that his demonic guide the Violator, who appeared as a clown, showed up. He revealed to Spawn the purpose of his life and fought him, but had his battle interrupted by Malebolgia.