Do you know the game Mafia? The idea of this game is the same. The only difference is the story and the roles. The story is, that you are in a town with werewolves, that are eating poeple and the goal of the village is, to kill all the werewolves and the role of the werewolves is to eat all the other people. The role of this card is amor. It wakes up in the first night, and puts two players in love. The players now can't kill themselves and if one of them dies, the other one dies too.
To print this, I used the multipass technique described by @makeanything in this video. So first print the color files and then the back file in black.
For all of the cards I made, I used OpenSCAD, for the design I used Inkscape and converted it to OpenSCAD