“Shambling artifact”, which, similar to a shambling horror, combines random aspects from various different artifacts, and is constant over the course of one game.

Shambling horrors can always engulf adjacent monsters (rather than it only happening some of the time) and add their special attacks. Though this works only for the shambler that engulfed the monster, it does not propagate to all the other ones.

Every time you kill a shambling horror, every other one in the game gains the same additional random ability or attack.

A monster passive ability (possibly for shambling horrors or beholders) that unmaps its surrounding. This would be most useful when the monster also has something that incentivizes blinding yourself when near it, such as gaze attacks.

However, this can be negated by player note-taking of the map before the monster wipes it, so care should be taken not to make that worth doing.

Shambling horrors have randomly generated names, which give some clues about their stats and attacks.

The Oracle can under some circumstances give you information about the stats and attacks of a shambling horror in your game.

Hitting a shambling horror with polymorph should not polymorph it into something else; instead it should rerandomize its stats and attacks.

This would be better if shambling horrors were randomized per monster rather than per species; it doesn’t make much sense to polymorph a horror on dungeon level 20 and a preexisting horror on dungeon level 17, or new horrors that haven’t even generated yet, get rerandomized.

Zapping probing at a shambling horror should tell you information about its randomized stats and attacks.

Shambling horrors gain their own mextra struct which contains details of their statblock, rather than overwriting the shambling horror’s own statblock in the mons[] array. This allows horrors from a bones file to retain the characteristics they had in the bones game, alongside horrors from the current game that have different characteristics.

It may be possible to look up the attacks and abilities of a given shambler on the map by farlook.

Hitting a shambling horror with a probing beam describes its stats and abilities.