So, I had around 300k mana on a scull. And then gotten mana for a felony in a dark court. Scull was the one who held the tower. Lost nearly 200k mana as a result.
Then gained a bit more, to about 110k mana and went to dark court again. Was reset to 99999 again.
Didn't find any mention of this online, so posting it here.
Beware, fellow demons and demon-hunters, dood!