Assuming the mutator resolves, you pile the mutator and target on top of each other (you choose the order) and they become one creature permanently
When you attack Sparkling Crystal to a Tera Pokemon, attacks of that Pokemon cost one Energy less
Now, theres nothing stopping those decks from taking a lot of Super Rare and Ultra Rare card points to construct, but thats a whole separate issue
Both of those decks include a very powerful Commander and a nice assortment of deck-exclusive cards and reprints that form a great foundation for any Energy deck
Key character cards (Charizard, Pikachu, Eeveelutions, popular Legendaries) available at significant discounts from peak hype
Art directed, designed and illustrated by Steven James