"I think the allure with the Team Rocket series is that in the show and in the game, Team Rocket are the villains and the Pokmon in this set are all dark," explained Scott Pratte, a well-known Pokmon trading card expert
The cheaper effect will mill an opponent for 3, then steal a land card from that player's graveyard
While it can be argued that a card like Eternal Witness will often work better in some decks than Snapcaster Mage, you cant use that card to give something like Mana Drain flashback at instant speed to stop a key threat and keep you in the game
For the lowest per-pack cost overall, Japanese booster boxes from AmiAmi or HobbyLink Japan offer the best value - though shipping from Japan adds $15$30 per order
Key cards: Metallic Mimic and Depala
In this case, its cards have different values depending on the orientation in which you hold them, and there are some interesting differences in how cards are played and handled