Train

Superdreadnought Rail Cannon Juggernaut Liebe is the summit the Train deck is always climbing toward. Sitting at 4000 ATK base and able to gain 2000 more each turn through detaching materials, it can swing multiple times per Battle Phase — enough attacks to end the game in a single turn once it gets rolling. The deck's entire infrastructure exists to stack Level 10 EARTH Machine monsters onto the field quickly enough to Xyz Summon a Rank 10 like Superdreadnought Rail Cannon Gustav Max, then climb further into Juggernaut Liebe by using that Rank 10 as material.

Getting to that first Rank 10 involves several overlapping routes. Revolving Switchyard is the engine's heartbeat: when a Level 10 EARTH Machine arrives, it recruits a Level 4 from the Deck and bumps it to Level 10, immediately supplying the pair needed for a Rank 10 Xyz Summon. Night Express Knight and Super Express Bullet Train are the preferred Level 10 bodies to trigger this, with Ruffian Railcar serving as the in-hand search that finds them. Heavy Armored Knight Babeldecker extends plays further by Special Summoning another EARTH Machine from hand on arrival, while Double Headed Anger Knuckle can revive Level 10 monsters from the GY to rebuild the overlay count. Train Connection then doubles Juggernaut Liebe's already towering ATK for a finishing blow, banishing spent Level 10s from the GY as its activation cost and turning discarded heavyweights into fuel one final time.