If you die and are not life-saved, any nearby intelligent pets should be able to zap a wand of undead turning at you in the next few turns to resurrect you, with the message “But wait… You are revived by your faithful [pet]!”

Unicorns should be able to attack you from a knight’s move away without moving from their spot, to make them more tactically challenging to face.

When something has debuffed you to be vulnerable to a certain type of elemental damage, you should be able to eat a corpse or tin of a monster that conveys resistance to that type of elemental damage to cancel out the debuff.

An identification-less conduct - you are prohibited from identifying any items. There are three possible implementations of this, in ascending order of strictness:

1. The conduct is broken when you use identification magic to fully identify an item. This does mean it’s a risk to sit on thrones, as the “insight” effect may fully identify your inventory without warning. Use-identifying (e.g. zapping a wand, seeing a bolt of fire, and learning that all wands of that type are wands of fire) is fine.
2. A birth option which shuts off formal identification and use-identification. This would likely just create a lot of tedium, though - the player would be incentivized to type-name object classes that they know for certain as soon as they learn them.
3. A birth option which shuts off formal identification, use-identification, AND the discoveries list (so type-naming is not allowed and you always just see items as their appearance). This nominally removes the tedium of the above approach, but could still result in tedium if the player wants to replicate the discoveries list outside the game.

Gold and shadow dragons should have a passive blinding attack, because they currently have none and are safe to attack in melee. Gold dragons’ passive could be flavored as a flash of light which hurts drow and gremlins, but this might be annoying for anyone with a pet gold dragon and getting blinded all the time as it fights monsters.