The Pain Train of Time

Noticing a town, destroyed by a runaway train, and being the only Time-Traveling Cowboy in the Wild West, you decide to send yourself back in time to stop the train from causing mass destruction. Unfortunately, the train is full of dangerous things that could kill you. Luckily, you're, y'know, a time-traveler! Whenever you receive a fatal blow, your time-machine will automatically create a copy of…