The mod has been released on Curse. You can download it here https://minecraft.curseforge.com/projects/rally-health.
Thanks for the suggestion, I had loads of fun making the mod
I would suggest 3.5 seconds. It takes 1.2 seconds to fully draw a bow, so that gives you two shots (with minimal aiming) at a distance. Combat is much faster-paced in Minecraft than in Bloodborne, but two seconds would be barely enough to make up for the knockback of whatever hit you in melee. But perhaps the exact timeout could be changeable in a config file?
Added a config in which you can change the timer. It now defaults to the suggested 3.5 seconds.
Do you know how to modify the health bar/ damage mechanics? I would be very interested in a mod that implemented something like Bloodborne's Rally health system. In that, when you take damage you can earn that health back if you do damage back to monsters within the next few seconds. I know some mod in Sky Factory 3 already has a health stealing/vampirism weapon enchantment, so you might be able to base it on that, maybe in combination with a hidden status effect for the "at risk" hearts? I don't know how simple this would be, so feel free to reject it.
My name is Mrbysco and I'm the guy behind Meme In A Bottle, Statues, Just A Raft Mod, Mundane Redstone, and recently Enhanced Farming.
I love helping people. The whole reason I mod is to give back to the modding community.
If you have ideas for me post them in the comments. Be sure to be informative, I can't look inside your head if you just say "More furnaces" You gotta be more specific.
I'm still awaiting a friend that was gonna supply me with Ugandan Knuckles sounds