Haha nice! Love me a good bit of game dev lore. I'll remember this when Scrong The Spire blows up
It's a similar mechanic to a game called "Blood Card" where your deck is your hp. Underrated game. But yeah, I could imagine plenty of ways indicating the danger and increased stakes of getting low on "health" Just show red vignette at the border and heart beat like cod lol
Can't wait to see more!