The best of all three decks (machina, infinitrack, trains) coming together to make possibly the hardest deck I've ever played.
This deck is extremely fun to play, but also extremely hard to play optimally. Winterkills has a wonderful masterclass video over the deck if you're looking for a means of entry into the deck. He also has another deck profile in the video so I suggest checking it out.
The main thing with this deck that is different is that it has revolving switchyard (only 2 cause you draw so readily). It allows for the ability to play through more hand traps and has another resource loop in bullet train and railroad stampede. I'm also not playing any monster hand traps cause so many people are on triple tactics talents.
The forbidden chalice would be droplets if they were a little cheaper, but even with the upcoming reprint, I'm not sure they will be under $50, so they aren't going in anytime soon, but if you have them, this deck has a lot of cards that work in the grave.
Overall, the deck is extremely fun.... and rather competative too! There are tons of videos on youtube for this decks combos (the train community is kinda huge at this point lol) so there are plenty of resources to learn to play it!