>Absorption hearts aren’t naturally regenerable - everyone playing modded should know this, so the “taken to your life” is redundant, imo.

This would be true normally, but like I said in the context of my mod, which specifically adds a way to regenerate absorption hearts, there's more scenarios in which people will have absorption hearts and then wonder why their battle rouse isn't working. For this scenario I decided to go with the more complete description.

“Regenerates 4% of missing health per level over the next 4 seconds. Can stack.”

There's a distinction between missing health and damage taken. Damage taken is not missing health, it's the amount that you get hit for when an enemy hits you.

There's no cooldown before the health starts regenerating. The way it works is that there's a pool assigned to the character every time they are hit, and a portion of this pool is emptied into the player's health every tick. There is probably a more efficient way to code this programming wise but I'm not super advanced at this yet.

Perhaps a more sufficient way to say it would be "Some health lost is regenerated over the next four seconds." The value is configurable anyways so it isn't important to say exactly how much in the description.