Theres even a decent amount of free stuff like codes, efficient ways to get your hands on cards, and daily quests to earn rewards
The more interesting value will be using Archfiend of the Dross to do a lot of damage and then sacrificing it before the last oil counter is removed
One card that Ill be eager to get cheap copies of is the Safekeeping, a card which is $3 as a nonfoil uncommon but one of the most popular ways to keep your stuff safe
Currently, the most valuable Pokmon card is Pikachu, with some recently sold cards on eBay fetching $10-11 each, though most are selling for $6-7
Malcator, Purity Overseer Creating a Malcator, Purity Overseer deck could be a fun challenge
In this format, however, the card should absolutely excel thanks to offering free draw, a powerful body, and treasure tokens