To know if your Pokmon cards are worth money, look for rare prints, limited editions, and high-condition cards
//// Megatron, Destructive Force Color indicator: red, white, black Legendary Artifact Vehicle 4/5 Living metal (As long as it's your turn, this Vehicle is also a creature.) Whenever Megatron attacks, you may sacrifice another artifact
The rating I give the cards is much more an indication of how powerful that card is and far less so than usual as an indication of how playable it is
Moreover, the development time that would need to be spent on this is arguably best spent elsewhere at present
The depth of lore that the game is creating, as well as varying opportunities to create strategies in the game, can provide countless hours of enjoyment