First, Normal Summon "Wind-Up Rat", which can be obtained by leveling up Bronk, and then use the effect of "Wind-Up Shark" in your hand to Special Summon it.
Next, use the effect of "Wind-Up Shark" on the field to decrease its Level by 1 so that you can Xyz Summon "Wind-Up Carrier Zenmaity" using "Wind-Up Shark" and "Wind-Up Rat."
Then, use the effect of "Wind-Up Carrier Zenmaity" by detaching its Xyz Material "Wind-Up Rat" and Special Summon a second copy of "Wind-Up Rat" in face-up Attack Position from your Deck!
Finally, activate the effect of the second copy of "Wind-Up Rat" to Special Summon "Wind-Up Rat" from the Graveyard, then you can Xyz Summon "Wind-Up Zenmaines" or another "Wind-Up Carrier Zenmaity"!

First, Normal Summon "Heraldic Beast Leo," then Tribute it and activate "Charged-Up Heraldry" to Special Summon "Heraldic Beast Leo" and "Heraldic Beast Unicorn" from your Deck!
This will let you activate the effect of "Heraldic Beast Leo" that was sent to your Graveyard and add "Heraldic Beast Eale" to your hand from the Deck. Since you control 2 "Heraldic Beast" monsters, you can Xyz Summon "Number 18: Heraldry Patriarch," "Number 8: Heraldic King Genom-Heritage," or "Number 69: Heraldry Crest" by Special Summoning "Heraldic Beast Eale" from your hand!