Inte's Lich System: Lich

Your lichly powers have reached a zenith, turning you into a true lich.

• Ability Score Increase. Your Charisma score increases by 1.
• Unarmored Defense. While not wearing any armor, your Armor Class becomes 12 + your Dexterity modifier.
• Soul Sacrifices. Your soul has been bound to the material plane by an ancient magic, and with that binding comes consequences. You must feed souls to your phylactery, or risk becoming a lesser being. You learn the Imprisonment spell, and may cast it once per day without expending a spell slot or using material components. When you cast the spell, instead of choosing the normal options, you may choose to instead trap the target's body and soul inside your phylactery. Your phylactery must be on the same plane of existence for the spell to work.
• Rejuvenation. When you drop to 0 hit points, you don't make death saving throws. Instead, your body turns to ash, leaving all your items behind. If you have a phylactery, you gain a new body in 1d10 days, regaining all hit points and becoming active again. Your new body appears within 5 feet of your phylactery.
• Lichly Resistance. You gain resistance to Cold and Lightning damage.
• Bone-Chilling Cold. The damage dealt by your Deathly Grasp ability increases to 2d6 cold damage.