This is very well polished and professional. Art assets made in this game is incredibly impressive, the card system seems like a huge pain to plan and code, and it amazes me to no end that this is made in just 5 days. This game could already be on steam with just a few more added content.
One gripe I have is that I kinda wish there is a fast forward button or turns take lesser time. Each turn takes a little too long for my liking personally.
Great job!