Semi-Lich

Your a lich, who could be any alignment, and is not as strong as a lich, at least not until higher levels, when you might even surpass them. Use your lich like nature to your advantage.

Magic affinity

At second level, choose a spell type, Necromancy, Divination, or Enchantment.  The gold and time you must spend to copy a spell of that type into your spellbook is halved.

Devination

You specialize in Divination magics

Enchantment

You specialize in Enchantment magics

Necromancy

You specialize in Necrotic magics

Liches Life

You begin to feel the effects of the Semi-Lich ritual you performed. after each long rest, you gain 1d4 -1 temporary hit points, which you lose after 24 hours. the dice you roll increases at higher levels.

additional, you age slower as your body starts to become undead. you age 1 year every 10 years, and at 10th level, you stop aging at all,becoming immortal.

Soul Sacrifices

As a lich needs to feed souls to its phylactery, you can feed on evil souls to gain strength at the blink of an eye. When you reach level six, you gain a magical amulet that you can use as a spell-casting focus. Additionally, you may store a number of souls equivalent to your class level within it, which will be lost after a long rest. You may use these souls at any time to perform special actions.

You may sacrifice one soul to gain one temporary hit-point, which is lost after 24 hours.

You may sacrifice a soul to protect one person from an AOE spell, allowing them to automatically succeed in any saving throws needed. You may use this multiple times per spell.

You may sacrifice a soul to add +1 to any attack roll you make, magic or not. You may use this multiple times per attack.

at 14th level, the souls no longer need to be evil.

Undead

You are no longer humanoid, or whatever you were classified as before, and are now undead. You can still talk and communicate, and are immune to spells that turn undead, as to not derail the campaign. You do not need to sleep, drink, eat, or breath. you also have resistance to necrotic damage, now.

Semi-Lich completion

You now know the Lich's attack, paralyzing touch, which you can use at will. You can also spend souls to regain your spell-slots, costing 2 x The level of spell-slot you wish to regain.