Certainly an up vote.

+ suggested way is more obvious than the current implementation. How one could guess about 4 item restriction without a wiki? Even if anyone would scroll won't be useful anyhow, but, heck why it can't be useful when you really need to destroy something?

Absolutely. 4 item restriction is completely unintuitive - the scroll just seems to not to work without any reason.

Upvoting, although I'd rather see Cursed scrolls destroy a few items (two to four) than the entire inventory, or maybe have a higher chance of targeting something valuable.

It's not like these are so common that the 4-item minimum makes them too powerful.

I like the suggestion that blessed lets you pick the object (without dropping all your inventory), normal picks a random one (so you want to only have 1 thing), and cursed does all equipped.

I agree, destroying all equipped items is too harsh, even for ADOM. The other suggestions have my vote.

I picked all equipped items because it's an effect already in the game (an angry God will wipe your equips.)

I think it's actually okay, however, I don't have very strong feelings on this part. Maybe 2d3 equipped items, maybe weapon and armor, maybe 2d6 items from inventory, or anything similar to the above - all would be fine. :)

How about destroying an item with the highest value / highest DV/PV/to-hit/to-damage except artifacts? :)