Nein, weis ich leider auch nicht. Aber laut @aggroed wird es genau kein Pay to Win.

Aggroed nennt es Fivemium:

"The goal is to make it so you can start the game with just a $5 purchase. You can then level cards and gain new abilities faster with additional purchases, but the goal will be to make it so that everything can be unlocked with time and dedication to the game. We don't want this to be simply a "whoever pays the most wins." Strategy, following the meta, and playing smart combinations of cards should do better than simply plowing in cash to get powerful cards that get smoked when used in combination poorly." - Quelle