Pokmon cards value is determined by three core factors: rarity (how limited the print run is), condition (physical state from Mint to Damaged), and demand (collector and competitive player interest)
While there are certainly quicker ways to build up tokens over time, the idea of pumping up Earl with Ethereal Armor or artifact equipment and littering the field with squirrels will be a powerful strategy
English Pokmon cards are also allowed in tournaments in Latin America, Europe, Australia, Russia, countries in the Middle East, and South Africa
It reduces costs so you can play Characters cheaper, bounces Characters back to hand (yours or the opponent's), and generates card draw through effects
Thoughtseize (and Inquisition of Kozilek) Something that I see in a lot of Cubes is players including discard spells that are specific to their environment and eschewing the more generic Thoughtseize
This means that Ketramose is an amazing card draw engine that fits into a struggling Modern archetype