These are all the legendary lords which were added during Total War: Warhammer II.
As far as campaign is concerned, all lords added in TWW2 are playable in both Eye of the Vortex and Mortal Empires, aside from Drycha who is only playable in Mortal Empires.
Again in campaign terms, lords originally added in TWW1 are only playable in Mortal Empires, although some of them have been changed (eg: put in a different starting location or faction) for the second game. Scroll down further for another table showing that.
List[]
First game lords[]
In Total War: Warhammer II, first game lords are all playable in the Mortal Empires campaign. However, there has been many changes and updates to them. Click "expand" to expand the table.
In this table, "base game" means the first game, which is required to play Mortal Empires.