From DoomWiki.org

Appearance statistics[edit]

In the Heretic IWADs the mystic urn is first encountered on these maps per skill level:

The Heretic IWADs contain the following numbers of mystic urns per skill level:

In the Hexen IWADs the mystic urn is first encountered on these maps per skill level:

The Hexen IWADs contain the following numbers of mystic urns per skill level: