How much are you looking to get?
i surfed a lot of websites with clash royale account and the minimum price for a level 9 that i found is $40 and it have only 48 cards...
my account have 51 cards of which 2 are legendary...
but i want to sell it so the price is
$35You probably won't get Bitcoin as a payment method , but if you try selling it at Playerup or EpicNPC you will get a lot more then this. GLWS