This game should never have an ability to sell, the inability to sell means you have to plan ahead according to the level, if there is a fire absorbing boss you have to plan around that rather than just selling all your fire mages before he comes.
Card is way too easy, hardest difficulty with all 3 modifiers on use scrolls to avoid any difficult fights and just pick off the groups of one or 2 enemies on level one, explore most of it then explore level two a bit and you get badge. Didnt bother playing after I got the card as game is boring.
Gah the hard badge is fricking impossible! been playing for ages and i keep on getting a wall of mines at around 1600, then just to add insult to injury there is normally a minesweeper or invincibility on the other side!