I mean yeah I guess there's the restriction you can't copy an opponent's creature but I don't think that's particularly relevant when we're talking about cards you use for combo purposes
You'll want to move as many characters to that location as possible , prioritizing characters with Reckless challengers, low Willpower questers like Simba, Scrappy Cub, and, if you can find her, Moana, Born Leader, who will ready all your other location-bound characters every time she quests
Japanese Extra Battle Day Full Art Lillie Lillie is a popular card for her character alone, a beloved companion who appears in Pokmon the Series: Sun and Moon and the Pokmon Journeys anime series, so there's already a slight 'waifu tax' associated with all versions of her card
C Common Cyber Dragon Vier X LIGHT Level 4 [ MachineEffect ] ATK 1100 DEF 1600 This card's name becomes "Cyber Dragon" while on the field or in the GY
The middle two are a nice default and makes this a two for one quite ably, and you can discard lands or the wrong card for better optons as well making this not card value, but card flow
There are tons of tokens and artifact generators in this deck, along with plenty of ways to reward yourself for creating all those tokens
