[quote=@Raineh Daze]
No unstoppable invisible trains. Was I not clear enough on that part? Especially not trains that would therefore be invisible to almost every playable character the series has had, discounting the pair-ups and Mystic Square. 

And it [i]still[/i] doesn't fit to have a Dullahan doing Komachi's job because: A) Eiki doesn't let her slack for that long, and B) [i]dullahan are not psychopomps[/i]. 
[/quote]

While I agree that invisible trains might be a bit much, I must disagree with you about Dullahans not being psychopomps. While being a headless horseman is the general appearance of a dullahan, they do have roots in [url=http://pg4anna.tripod.com/Dullahan.htm]myth[/url][url=https://en.wikipedia.org/wiki/Dullahan]ology[/url] where seeing or interacting with a dullahan is a sign of death, effectively making them sorta like Shinigamis in the sense that you don't see them until you're dead/about to die.