When you cause a Yendorian Army monster to flee, nearby lower-ranking monsters may also flee. Possibly extend this to other ‘pack animals’ such as orcs or ants.

Remove sleep as a ray. Sleep wands (and monsters with sleep breath like orange dragons and Nazgul) instead shoot a beam of sleep. The sleep spell either also shoots a beam of sleep or causes sleep in an area of effect. Sleep could also possibly be a cone, spreading out in the direction it’s shot in, but cone spells remain unimplemented.

Remove covetous warping entirely. However, a change like this would need to take into account that it makes the vast majority of boss fights a lot easier and more boring in that they would tend to consist just of the hero and boss standing next to each other hitting each other until the boss dies, so it would need to come with some improvements to boss fights, such as more interesting tactical AI where they will disengage momentarily and multiple forms (i.e. you “kill” it and then it becomes stronger before finally being defeated).

There should be a message from when you pacify (not tame) a monster by throwing food at it. “[monster] seems pacified by your gesture”; possibly something about you getting the monster’s order wrong if you’re hallucinating.