Monsters can appear in different states, indicated with an affix to their name. These states can change the behaviour of the monsters.
Darkened monsters are covered in dark magic. They have 100% chance of trying to attack you. Their hp is 50% higher than normal, they do 10% more damage when they hit you, and magic weapons have no effect on them.
Savage monsters are more aggressive and less likely to back off. They will have 100% chance of attacking you and they do 25% more damage in their attacks.
Deadly monsters are blinded by their rage. They have 50% more hp, 100% chance of attacking you and do 40% more damage in their attacks.
Sick monsters have only 50% of their energy.
These variations are shielded from magic. Magic has no effect on them.
Confused monsters have only 50% of their base strength, and will not attack.
These monsters have been in the dungeon a bit too long, they tired, they only have 50% of their base HP, and only 50% strength when they attack.