Umbreon & Darkrai GX and Espeon & Deoxys GX are both featured on the Unified Minds Boosterpack artworks, but both GX cards don't have a higher rarity in the set
White tends to get the small cheap and mid-size defensive creatures, black gets creatures that can surprise kill you, often with higher power than toughness, and green gets bigger creatures
This can be extremely valuable when you have a lot of Treasures but you need to find better spells to play, or when you know what is the top card of your library and you need to get rid of it because it's a dead card
No, you can only discard from your hand
Creature - Elemental Giant Vial Smasher the Fierce Whenever you cast your first spell each turn, choose an opponent at random
The Pokmon Battle Partners expansion has quickly become a fan favorite, partly due to its dynamic illustrations and the inclusion of beloved trainers paired with iconic Pokmon