What affects the value of Metapod
A deck can consist of maximum 4 identical cards
Elder Entity N'tss X LIGHT Level 4 [ Fairy / FusionEffect ] ATK 2500 DEF 1200 1 Synchro Monster + 1 Xyz Monster Must be Special Summoned (from your Extra Deck) by sending the above cards you control to the GY
It can deal 50 damage for a single Fighting Energy, which one-shots every non-ex version of Eevee by hitting their Fighting weakness, and Rare Candy allows it to come down before Eevee gets to evolve when going first
Considering the strongly discounted price of the boxes on Magic Madhouse, I would perhaps recommend to go for three boxes to have the best chances but whatever you decide to do, this set can be a great addition to your collection.
You can earn resources, cosmetics, and even a secret card - the Genetic Apex Immersive Rare a1-283-mew