yugioh skateboard deck BW x Yu-Gi-Oh! Blind Box Series 1 Finesse x Yu-Gi-Oh! Yami-Yugi 8.25"

Special Summon from your Extra Deck, 1 Rank 8 Dragon Xyz Monster with 3000 ATK, using this card you control as material (this is treated as an Xyz Summon, transfer its materials to the Summoned monster), then you can attach 1 "Galaxy" monster from your Extra Deck to it

With that in mind, let's go through ideas of cards that go with the theme

It was here we saw the corrupting evil that came with Numbers cards

However, I know this cant be a reality, as your opponent needs to know the summoned monsters are within the right scales, so maybe making an effect that allows you to shuffle the face down attack position monsters would be advised