Fun concept, I found myself confused what the other interactions were, is a Wolf weak to scissors? to Water?
Besides that fact, I see how a lot of thought went into the card designs.
It could be interesting to see how the collected fingers could come into play later.
Thanks for the feedback!
We used a popular charts for extended rock-paper-scissors, like below 
Time restriction and some major technical problems we had towards the end prevented us from adding a bunch of UI/UX updates we wanted to put in to make it more clear what's going on.
We had some ideas about additional fingers, but we were pretty sure we won't be able to implement them in time. For example, we wanted to give each received finger from defeated enemy a buff for the run, like more HP, damage/shield increase, starting with shield or, even more complex - when using selected finger, you can boost effect on your card or gain more stats for the fight/run etc.