You discover a cure for aging and take no penalty to your physical ability scores from advanced age. This could mean you found the proverbial fountain of youth, consumed Ambrosia, or completed a variant process of becoming an undead lich. You are immune to death effects, non-magical diseases, and paid. Further you are considered to be under the effects of a Ring of Regeneration. If some form of a lich, you are also considered an undead creature for the purposes of spell effects and class features. In either case, 50,000 gold is required when selecting this discover to reflect the vast resources required to complete the task. Monolith spent a mote to complete the required research.
You regain 1d6 Hit Points every 10 minutes if you have at least 1 Hit Point. If you lose a body part, the ring causes the missing part to regrow and return to full functionality after 1d6 + 1 days if you have at least 1 Hit Point the whole time.
Monolith ascended to Limited Immortality after absorbing essence from Yeenoghul and completing a ritual.