The new pack will more than likely will contain cards from the BREAK era since it's in the title of the deck's name, but wouldn't it be cool if the pack instead contained reprints of Base Set cards for Pokemon's 20th anniversary
So, instead, I give you the best way to go based on your goal: For fun : The free methods are your friend, my friend
You can't choose multiple creature types, such as "Halfling Scout." Card types such as artifacts can't be chosen, nor can subtypes that aren't creature types, such as Forest, Equipment, or Food
You are never forced to activate mana abilities to pay costs, so if there is a mandatory additional mana cost (such as from Thalia, Guardian of Thraben), you can decline to activate mana abilities to pay for it and hence fail to cast the suspended card, leaving it in exile