Homebrew Ancient Immortal Species Details

During Mentu-Hotep's reign as pharaoh, he learned from a Sect of Roxathos priestess the secret formula for an elixir that grants eternal life. The potion not only made him immortal, but also allows his body to regenerate from damage that would kill a normal human, such as multiple wounds. He requires neither food nor drink nor sleep, and only the sun's rays to maintain his life. However, he still craves food and certain other physical pleasures, like sex, smoking, and alcohol.

 those who take the elixir become immortal, inhumanly strong, and unable to die from normal means. These individuals could even be said to be "reverse vampires" since they derive their strength from the sun, and cannot live without it. Unlike vampires, they are able to eat, drink and function as normal humans. However, this immortality comes with a strange price. Those who drink the potion are constantly driven to sate their senses. They constantly crave food and drink, although they need neither to survive. They have an extremely heightened libido. Moreover, their bodies continually blunt drugs that give humans pleasure. For example, Mentu-Hotep constantly drinks and smokes because the "buzz" the alcohol or nicotine would normally give him fades after a few moments.

But perhaps most importantly, the elixir causes any organic substance to become invulnerable and self-sustaining. Having once tested it upon livestock and crops in his own time, he had been horrified to find that such things transformed by the elixir cannot be digested and continually regenerate even inside the intestines, with bloody and gruesome results. And once this elixir is used, it cannot be undone and should it be poured into a fire, it would become dust that could then be swept by rain into the rivers or the oceans, creating immortal fish and sea creatures, or watering plants to become invulnerable. Therefore, the elixir, once brewed, cannot be disposed of by any means other than deliberate consumption. For this reason, the elixir's formula is strictly hidden, though the ingredients are common and easily obtained. 

Ancient Immortal Traits

Ancient immortals were once the great kings of an ancient desert empire. A few learned the secrets of a lost elixir of immortality.

Fast healing

A bonus effect of the elixir is fast healing. At the beginning of each turn, as a free action, if needed, you heal 1d10 + your Con modifier. If the last attack that causes damage is fire based then the amount healed is halved for that turn.

Natural psychic ability

The elixir of immortality grants the following feats: 

 

Telekinetic (Intelligence)  

You learn to move things with your mind. You gain the following benefits:

• You learn the mage hand cantrip. You can cast it without verbal or somatic components, and you can make the spectral hand invisible. If you already know this spell, its range increases by 30 feet when you cast it. Your intelligence ability modifier is the ability increased by this feat.
• As a bonus action, you can try to telekinetically shove one creature you can see within 30 feet of you. When you do so, roll your Psionic Talent die, and the target must succeed on a Strength saving throw (DC 8 + your proficiency bonus +Intelligence modifier of the score increased by this feat) or be moved toward you or away from you a number of feet equal to 5 times the number you rolled. A creature can willingly fail this save.

Telepathic (Intelligence)  

You awaken the ability to mentally connect with others. You gain the following benefits:

• You can speak telepathically to any creature you can see within 30 feet of you. Your telepathic utterances are in a language you know, and the creature understands you only if it knows that language. Your communication doesn’t give the creature the ability to respond to you telepathically.

Greater Darkvision

The subject gains the ability to see in total darkness, with no limitation to the range of vision.
Terrain, distance, and line of sight are the only limitations to the subject's ability to see, and the normal Spot check penalties apply on attempts to descry distant or small objects or creatures. The subject can see in only black, white or gray shades.
Greater darkvision  can see in magical darkness as well.

Ability score increase: Strength, Intelligence, Constitution

Imbibing the elixir of immortality, you gain +2 to strength, intelligence and constitution.

Age

Pharaohs lifespans stretch millennia. They enter adulthood in their late teens, and can only be destroyed by an extreme all consuming fire (as in sustained dragons fire or elder volcano).

Alignment

Due to being immortal and almost impossible to kill, the elixir is a well kept and guarded secret only given to those select few deemed worthy.

Natural Athlete

You have proficiency in the Athletics skill.

Powerful Build

You count as one size larger when determining your carrying capacity and the weight you can push, drag, or lift.

Ancient Immortal Languages

You can speak, read, and write Common and Celestial and have Telepathy. Gain bonus languages equal to your intelligence modifier.