So a card game RPG. Think DnD type encounters and progression but with a deckbuilding component, and the ability to duel, ie: 1v1 PvP combat. Players embark on intense and long adventures against all kinds of great adversaries. Pretend it has a great combat mechanic and plays well, and focus on the concept. Would you play it? Long adventures for you and your friends to take on, and also duels so you can pick up and play at the hobbie shop.
If you would play it, why?
What would the game need for you to want to play it?
What would it need to keep you interested?