Harrowed Entertainment Group is preparing the release of a new Formats document for their tournaments, and beyond.
Some formats will have weird requirements. The goal is to make it as easy to play and to find out what cards can be played in what formats.
From the new document -
Boot Hill Extended: Only Dudes and deeds that were not killed in the storyline can be played, even if they were not included in Boot Hill and beyond. There are no limitations on other card types. The Fear Level Starts at 5.
Pros: More relaxed version of BH that still honors the storyline, much wider range of deck construction, limits some of the exploitative decks and combos.
Cons: Other than referencing a spread sheet/card list, or looking for set ‘bugs’/identifiers, there is no clear method for identifying a Boot Hill Extended card.
Here are links to all the "Dead" cards that are not legal in the format.
.doc of the new version of the list - Updated and compiled by HEG.
Gomorra After Boot Hill Complete PDF - Scans of the pages from the Epitaph and HEG's addendum.
Hope that "demystifies" the format a little and helps you build decks!