Let me get this straight. In Mistborn: A Secret History, Hoid takes a bit of Lurasium from the Well of Ascension. If Wit on Roshar is Hoid, then he also has a Cryptic, which could mean that he is now a Lightweaver. And then, in the final chapter of Oathbringer, it says something about repressing his healing, which hints at him being a Returned from Warbreaker. How much damage would that much Investiture close to your soul do to you? And how would his Connections in the Spiritual Realm be affected?