I have noticed an odd trend in the trunk. An abundance of artefact items in any given run, I can tell this is to make Mountain Dwarf more useful as not all of the artefacts are actually that much better than normal items. Still, in noticing this, I did note that random artefact staves are wildly rare in comparison. I have only found one in a lot of recent play, and it was at the end of a gauntlet. Thinking back, that is the only random artefact staff I have ever seen in my entire time playing this game over many years. I think they need to be made more common.