Hades' Burden

You gain a resistance to bludgeoning, piercing, and slashing damage from non-magical weapons. However, as a result of this action, you  lose all memories you have up to this point. Bits may be restored through the casting of Lesser Restoration or a retelling of events. Large portions are recoverable through the casting of Greater Restoration. You have disadvantage on ability checks to recall events or facts (Arcana, History, Investigation, Nature, Religion) until a time when your memories are mostly recovered (or at the DM's discretion).