Playing from a random pool is an interesting idea, though because of the "match-this-to-resolve-that" dynamic of the game, it can lead to some sticky situations and I wonder how often Kedvenc finds that he defaults to his adventure card slots as opposed to the randoms? Drawing the

from the randoms does sound exciting, if difficult!
Freeloading Phil's "play from the pile" reminds me of how my friends and I used to play Magic back in the day! I wonder if there's a way to add some RP-style elements, like a "store" that is made up of

and

with perhaps three cards face up and available, which get replaced each turn, and a similar deck for

. This way you might have some options to address things that would otherwise just jam you up forever.