Since your talking about flavour UUs, etc.- 
Clan of Embers-
It would be very interesting if Clan of Ember units could build lairs. Lizardmen could build ruins, goblims could build goblin forts, etc. They could build these in neutral land or their own, so even in mid/late game barbarians would be coming out of their land to harass others.
Elohim-
The Elohim are supposed to be peace mongers, but the tolerant trait means that they must war to profit. You could either give them lots of culture UBs to flip cities, or (don't know if this is possible) make civilizations pleased or better towards the Elohim more likely to gift cities to them. Also, they should be able t capture barbarian cities and keep the barbarian UUs (I really want a game where I can build all 4 dragons
).

Clan of Embers-
It would be very interesting if Clan of Ember units could build lairs. Lizardmen could build ruins, goblims could build goblin forts, etc. They could build these in neutral land or their own, so even in mid/late game barbarians would be coming out of their land to harass others.
Elohim-
The Elohim are supposed to be peace mongers, but the tolerant trait means that they must war to profit. You could either give them lots of culture UBs to flip cities, or (don't know if this is possible) make civilizations pleased or better towards the Elohim more likely to gift cities to them. Also, they should be able t capture barbarian cities and keep the barbarian UUs (I really want a game where I can build all 4 dragons
