Effect for Unable to recover HP

[Klandare]

Is there an effect that can be setup to put on a character/creature that would prevents HP recovery?

This would be for spells like Chill Touch or the Death Tyrant main eye.

[Zacchaeus]

No, that's not something you can automate.

[Griogre]

I just usually have an info effect "Can't recover HP" that I drop on the NPC or Player