In Zendikar Rising they were all lands on at least one side, while in Kaldheim they were used for the legendary creature Gods on one side and a different kind of permanent related to them on the other
Shivan Sand-Mage
This is a simple 1/4 creature with lifelink that lets you scry 1 each time an artifact enters play
If any of your Pokemon were Knocked Out by damage from an attack from your opponents Pokemon during their last turn, this attack does 90 more damage
They had to create tons of documents: instruction manuals, product guides, advertisement for the game, articles for players to learn how the game is played all that jazz
However, before I continue, I need to provide an important disclaimer: the product shown in this review was provided free of charge by The Pokmon Company International, but no money was received for this review and it is independent from Pokmon