I really like the premise. Playing cards on the heroes is a good mechanic, something that gives an extra layer of strategic depth. I would love to see the gameplay polish brought up a bit, I was walking through walls and I think I was on a half-grid at some point. Aesthetically it looks very good and I LOVED the dudes with stuff strapped to their backs! When I saw the butterfly guy I laughed, and then the game kept throwing more guys with stuff at me. I think one might have been a lamp? Fun stuff.
I'm very interested to see what kind of dedicated deck builder you could create with more time.