A couple quick additions:
1) I think I found blightheart in the forest on the island of Neketaka following a fight with some
2) Lourd Darryn's Voulge can be found on a shipwreck on the eastern edge of the map (Binds Barbarian, Fighter, Druid)
3) Modwyr can be found in the Old City in Neketaka (I believe)