Gameplay spoiler below:
This game is very fun! I'm stopping here because I'm just going infinite at this point haha!
This was a very fun idea, I love all the different art from everyone who contributed, and I think you planned involving everybody super well--keeping it to stick figures was such a good idea.
I don't really have much feedback other than just that the game does seem to go infinite--once you get a high enough attack that's cheap and you have the ink to action point conversion, you basically just grind through the enemies and end up getting more ink than you spend every round (in my run I had >1000 ink when I quit). I could be wrong, but I think if you make it so that health grows much more quickly (maybe accelerating or exponential growth) that should fix it.
With that said, it was super fun to find the infinite though--so maybe you should keep that in! Maybe just having an end and some kind of reset could be a good addition. That or saving progress so that I could come back to this as a clicker game could be fun too :)
Overall awesome job!! Thanks for including so many people and making this :)