For example, after the release of Pokmon 151, cards like Gengar and Pikachu with Master Ball foil saw rapid increases in demand, instantly becoming some of the most valuable Pokmon cards in modern sets
If they can take Colorless, they too can be powered up by Dialgias Metallic Turbo
Xerneas is played in the deck as a means to damage Pom-Pom Oricorio or for better damage trades
But here's where it gets interesting because top-graded English cards are harder to come by, they can actually command a premium when they do exist
To determine the total cost of a spell, start with the mana cost or alternative cost you're paying (such as a flashback cost), add any cost increases (such as kicker costs), then apply any cost reductions (such as that of The Earth Crystal's first ability)
The cut is almost surely some of the previously mentioned Sam Black resource conversion stuff, and the empty sideboard slots are likely best as Collective Brutality