[1.7.4] Lich necromancer losing heal

[fon_luck]

Hi! I'm playing a necromancer lich. After increasing the constitution, he begins to lose health (negative regen). The greater the increase in the constitution, the greater the negative regen.

[Moasseman]

Do you have a Goedalath rock in your inventory?

E: Checked your inventory and yes you do have a Goedalath rock there.

[Erenion]

Increasing your CON increases healmod, which acts as a multiplier to your life regeneration.
Since that is negative due to the Goedalath Rock, increasing healmod will lower your life regeneration further.