When a monster is generated, there is a chance that it will be given a miscellaneous item to vex and confound adventurers. This will happen if the monster's level equals or exceeds the roll of a d100.
The following monster types are ineligible for miscellaneous items:
- Monsters with explosion attacks
- Mindless monsters
- Ghosts and shades
- Soldiers have a 12/13 chance of missing out on the miscellaneous item roll.
Each monster will receive at most one miscellaneous item. If the monster's difficulty is 5 or less, there is a 1/30 chance that its miscellaneous item will be a wand of polymorph (1/6) or else a potion of polymorph (5/6).
If neither of these possibilities is selected, the monster has an equal chance of taking one of the following three options:
- wand of speed monster (5/6) or else a potion of speed (1/6); nothing if the monster is a guard
- wand of make invisible (5/6) or else a potion of invisibility (1/6); nothing if the monster is peaceful and the player cannot currently see invisible
- potion of gain level
Monsters with hands will attempt to zap the wands at themselves and quaff the potion of gain level immediately.