Cosmos: Infinity

Cosmos: Infinity is an online and physical trading card game. You start with all the cards unlocked in the online game, and as you play, unlock card codes you can redeem for real physical copies of your cards.

The game itself if fairly unique, but a few of the mechanics utilised are as follows:

 Custom starting hand: You start the game with 5 cards of your own choosing in your hand.
 Board position matters: As you play cards, you grow your "tree" which allows you to play stronger cards. Your cards power up the card at the top of your "tree" allowing it to attack, and getting the cards lower in your tree to the top is not always easy.