We would go on a quest, maybe following in the footsteps of the guardians in the book of unmaking, visiting Yor's ship and dwindler's ridge, finally ending in a mission to the moon where we kill the hive wizard that Yor encountered. After we do we get the exotic auto rifle the Inferno, which I am pretty sure Yor left there after is tussle with the knight. Idea for the exotic perk is reloading after a mutikill summons a hive knight's shield. They could do a similar quest for the first curse, of course there would need to be a different end mission.