Thanks for these. None, I believe, has mechanical implications though.If by completely new, you mean there from the beginning, you are correct.
The 5e MM says that liches feed mortal souls to their phylacteries.
The 5e MM says that souls that descend to the lower planes(abyss) are turned into Manes. Demon lords feed on manes, destroying them utterly. Soul consumed and destroyed.
The 5e MM says that a specter is doomed to the material plane, it's only end is the oblivion that comes with the destruction of its soul.
The 5e MM says that a yugoloth who has been permanently destroyed can be restored through a ritual requiring the expenditure of souls.
Unique items, such as these, do have mechanical implications.The 5e DMG includes Blackrazor which has a devour soul ability with similar can only be restored by a wish language.
The 5e DMG includes the Eye of Vecna which has a chance to tear your soul from your body and devour it when you use the Eye's powers.
Yes, exactly.The only real issue with the lich feat is that it happens at 4th level. It really should just consume a portion of the soul, marking it for later consumption when the jar is turned into a true phylactery.







