For supporting players and C.A. knowledge.
Tomb kings need to double their limit of units per building via techs or some achievement in campaign, like after attaining 4 or 6 books of Nagash. Or even all 8 in mortal empire campaign. Make it ultimate reward then please.
And second thing, they need additions and improvement on mortuary cult.
Particularly on legions of legends. Like a new dynasty, all special mortuary cult units must have and option to be awakened multiple times.
And, please, add all 3 heroes types to awaken. "Hero capacity: +1 for all heroes". For the same cost as awakening new dynasty.
So awakening not only for lords, because new awakened army with a new lord but with no physical option to add a hero is very frustrating.