'Increases Health Regen by -n%'

If stacked, does this send enemies into negative health regeneration so they lose hp instead of gain it?

Reddit reply I made to this same question: https://www.reddit.com/r/Grimdawn/comments/86t8dd/mythical_mark_of_the_forbidden_effect_explained/dw84quk/

  1. Thanks for the quick reply.

  2. Damn you google for not showing me.

The player can have negative health regeneration, and it’s bloody annoying.