The idea of buiding deck to maximize value make me remember some card game like Yu-gi-oh. You did great with the idea when combine it with the theme. The problem i have with the game (not sure it's because my laptop kinda week) is that the animation when shuffle and draw card when you draw about 5-6 card in a row feel kinda lag. If your design use this mechanic like a challenge for player when draw too much card in a row, it's fine. If not, it would be nice if you can fix that problem. One things that i also have that i play the game twice but can't finish it (it link with the first problem i said, the suffle and draw make the game crash and i can't send email again), which make me feel kinda bad because i want to explore till the finish. Overall, thanks for the nice game and cute ghost you have, wish to see more product from you and your team (Sorry for my bad english, some word may pronounce wrong).