- Pharos Sirius
Overall difficulty has been adjusted to match that of Copperbell Mines (Hard) and Haukke Manor (Hard).

The number of enemies has been reduced.
The attack power, HP, and behavior of enemies, as well as certain dungeon mechanics have been adjusted.
Symond the Unsinkable's HP has been increased, while the number of zombie war hounds has been decreased.
The attack power and HP of zu cockerels and zu pullets that spawn during the battle with the Zu has been decreased.
The attack power and HP of zombie storm privates that spawn during the battle with Siren has been decreased.
The potency of Siren's abilities, and the duration of their effects have been decreased.

So much for the only fun dungeon in the game.

..and slightly off topic, but I didn't actually think it was possible to make this any easier...

- Amdapor Keep
The potency of Plaincracker used by Megalith Marionette has been reduced.
Bloodlappers will no longer spawn during the battle with Demon Wall.
The potency of Imminent Catastrophe and Bubonic Cloud used by Anantaboga has been reduced.