No, there was no change. But it was always dependent on your own stats. So if you have little hp and high mystic, fights are much harder. If your skill levels are low, they are also harder.
To have the easierst special fights, have at leat 100k of your skills and only build monument-upgrades for Mighty Statue and Tomb of Gods. Ignore the other Monument Upgrades until you don't do special fights anymore.
 "Idling to Rule the Gods"){kind=icon}
No, there was no change. But it was always dependent on your own stats. So if you have little hp and high mystic, fights are much harder. If your skill levels are low, they are also harder. To have the easierst special fights, have at leat 100k of your skills and only build monument-upgrades for Mighty Statue and Tomb of Gods. Ignore the other Monument Upgrades until you don't do special fights anymore.