Normal Summon "Night Express Knight" without Tributing, activate the effect of "Heavy Freight Train Derricrane" in your hand to Special Summon it, and then Xyz Summon "Superdreadnought Rail Cannon Gustav Max"!
Then, activate the effect of "Superdreadnought Rail Cannon Gustav Max" by detaching the Xyz Material "Heavy Freight Train Derricrane" and inflict 1000 damage to your opponent.
As the Xyz Material "Heavy Freight Train Derricrane" will have been sent to the Graveyard in order to activate the effect of an Xyz Monster, you can activate its effect from the Graveyard to destroy 1 card on the opponent's field!
Destroy your opponent's card with this effect and finish off the Duel with the direct attack of "Superdreadnought Rail Cannon Gustav Max"!

First, Normal Summon "Box of Friends" from your hand and then activate a "Metalfoes" Pendulum Monster from your hand as a Spell Card.
Next, activate its Pendulum Effect against "Box of Friends" to destroy it and then Set "Metalfoes Fusion" from your Deck.
Activate the effect of "Box of Friends" that was destroyed and sent to the Graveyard in order to Special Summon "Metalfoes Steelen" and "Doll Monster Miss Mädchen" from the Deck!
Finally, by activating the Set "Metalfoes Fusion," you can Fusion Summon monsters such as "Fullmetalfoes Alkahest" and "Metalfoes Adamante" by using "Metalfoes Steelen" and "Doll Monster Miss Mädchen" on your field as Fusion Materials.