Bug / experience exploit during Maradino's Ghost encounter
Confirmed with EE 2.0.100.40
Player can farm Maradino's ghostly minions for infinite experience : Maradino's ghost keeps sumonning them as they are slained, and player keeps getting experience slaying them.

I've noticed this having killed their zombiefied alter-egos (moving furniture around to wake them) before 'summoning' Maradino's Ghost (i.e. getting the bloodstone). This may or may not be a required step for repeatability.

--- Got a full free level grin - I'm so ashamed :'-( ---