When I found out about Negalogia AA-Zeus, my thoughts were, "OMG THIS CARD IS BROKEN!" Then my thoughts were, "But which deck should I use it in?!" That's when I got the idea to play it in Trains. The deck's name is a parody of "Stairway to Heaven", a song by Led Zeppelin.
Negalogia AA-Zeus is broken already, but it is one of the best tech choices that Trains can have, and not just due to its spot removal. For one, if your opponent survives getting attacked with Superdreadnought Rail Cannon Juggernaut Liebe, you're gonna want to use it to summon this card. Otherwise, you're just leaving a large beatstick out with no protection or disruptions.
As for its nuking effect, if you use it and send Urgent Schedule to the Graveyard while it's Set, you can use Urgent Schedule's floating effect to search a Level 10 Machine. Similarly, if Super Express Bullet Train is sent to the Graveyard, whether by being detached from AA-Zeus or by its effect, Bullet Train's effect can add a Machine from your Graveyard to your hand.
And I'm not gonna lie. I just wanted an excuse to play RANK10YGO's favorite deck.