Wow those were some intens 72 hours but we (me, @cobby and @tek-atavuli managed to get our project done for the Jam. Our game is called Elemental Summoners. It takes components from autobattlers and deck building games. Using cards you can summong golems of different elemental types or combine them first and create a mixed golem, having attributes from both cards used. I know I should write a bit more but it's past 3am and I have to admit, I am a bit tired, finally.

You can find it here: https://ldjam.com/events/ludum-dare/55/elemental-summoners