2023-12-15, 08:00 UTC: Version 63 introduced an issue with the Rare Heroes in the Slayer Family, Maeve and Noril. They were receiving negative Mana Generation stacks from the Slayer Family bonus.
A change was made to fix this issue, and Mana Generation stacks are once again working correctly. A secondary effect of the change is that Maeve and Noril now get 10 HP per stack from the Slayer Family bonus, instead of 5 HP per stack as it was previously.
Our apologies for the inconvenience caused by this!