The Print & Play tier includes all of Season 1 with any Design-a-Cards but not the Kickstarter card.
Don't worry, when you get the game, it will be in English, with real numbers.
As of now, there are 10 cards in Season 1. But if both "Create-a-Card" backing tiers get bought, that number will increase to 12.
Also, if you buy Season 1 through this campaign, you will receive the Kickstarter Promo card.
With that said, Season 1 will include between 11 and 13 cards in all.
Don't see the answer to your question? Ask the project creator directly.