The King of the Deep is also more resilient and isn't easily made useless through battle afflictions. There is a new emphasis on exploring Agartha with the new Agarthan Architect commander that can dig through cave walls and the Broken Seal terrain that can be upgraded to a unique fortress.

King of the Deep now has fast heal so he isn't immediately made useless by afflictions.

Pale Ones can now use mines as citadels and upgrade them with better defenses. However, non-mine citadels will have reduced recruitment options.

The Earth Made Flesh and statue summoning spells have been reduced in cost by about 50% so they are more viable to utilize. The Earth Made Flesh has also gained regeneration to be more on par with other expensive level 3 summons.

New commander - Agarthan Architect - A level 1 caster that can cast the new, "Establish Lair" ritual on the surface in addition to a few other level 1 rituals. They are also tunneling and can explore Agartha.

Agartha - Flooding Agartha will now eventually destroy all flooded citadels. Be wary of using this tactic to flush invaders out of your plane as it will force you to migrate fully to Elysium.

In a random Agartha location a "Broken Seal" terrain will be spawned. The Agarthan Architect may invest gold and iron to upgrade this into a powerful temple fortress.