Twice now I've completed an adventure and started rebuilding my character decks.

 

However, due to banishing cards etc I can't refill a characters quota of cards. I press the continue button but the screen just greys out, highlighting the offending character. What am I supposed to do? Thanks.

I pressed on the missing card section (after the display was greyed) and a basic selection popped-up to fill-out the deck.

Hey caven,

 

If you just tap on the blue arrow, it will bring up the list of cards to replenish your deck. 

 

Thanks!

Hey caven,

 

If you just tap on the blue arrow, it will bring up the list of cards to replenish your deck. 

 

Thanks!

 

This is exactly the information I needed.  Thanks!