While my absurd rate in two-mans is obviously a good run against average competition, this deck is proven to have play at any level of competition
Pros: Grass has a TON of trainer support with Forest of Vitality, Bug Catching Set, Teal Mask Ogerpon, etc
For Cubes, which are designer formats with unique metagames and a lack of reliable statistics, defining power level is nontrivial
Lets get into it
Another way to think of this is, "Do we want the flicker cards to enhance your cards or hurt your opponents' cards?" You tend to flicker things of yours that you want to come back into play, such as cards with "enter the battlefield" (ETB) effects, while you tend to flicker things of your opponents they don't want to have leave and come back, such as creatures with +1/+1 counters and Auras
Korean Pokmon cards are more limited in distribution