From my understanding Composband is a fork of a variant (PosChengband) of a variant of a variant ... etc...
during the course of the many variants lots of jokes stuff has been added, and they end into Composband.
Most can be funny (i liked the Variant Maintainer unique and his Software Bugs summons breeding fast) some not so much unfortunately.
But i ran into one that was rather elaborated, the character Rolento from old Street Fighter Alpha 2/Zero 2 that apparently was added (along some other character from the street fighter serie) in Hengband (a japanese variant of Zangband).
For people that may be too young to remember, that street fighter character is jumping around a lot (and move fast), throw grenades and strikes with some a baton.
Important to know because in Composband that unique actually use the same type of behaviour (jump around the zone you're in, throw instant grenades, throw a carpet of grenades that explode after a few turns etc...) , i was very impressed to see all the effort the coder did to implement these stuff and tactics for that character considering it's just a joke. Can't wait to see if he did such effort for the other street fighters characters in the dungeons
Too bad Rolento wasn't prepared to face my character with his very nice recently acquired artifact spear (i play with 100% randomized artifacts instead of using the fixed ones, so the fixed ones are actually given different brands/bonuses) a drop from Hagen (the character that comes from the Siegfried mythology)
Not the heaviest damaging weapon i have in term of dices, but it is one handed (so allow for a nice ego/artifact shield and so more bonuses) and the bonuses actually make up a lot to increase damage as thanks to it i killed some uniques that my best damaging weapon couldn't.
EDIT : in case you enable the auto picker/destroyer then wants to turn it back to off for whatever reason, maybe there's an easy way when in Composband but i couldn't find it.
So if there's no ingame method, just go to
...\YourComposbandDirectory\lib\user\
And delete the file "pickpref-YourCharacterName.prf" , so the next time you launch Composband it's back to how it originally was, the auto picker/destroyer isn't enabled .