I was in upper guk, and the Fungus Mutant procced clockwork poison on me. I wasn't aware anything but Trohilic's Skean procced that spell - granted I never messed with mushrooms on live but nothing I can find indicates these dudes are supposed to proc that.
spell:
http://www.youtube.com/watch?v=4Vjn4...eature=related
mob:
http://eqbeastiary.allakhazam.com/search.shtml?id=3777
and I took a screenshot of the spell effect on me but for the life of me I can't find screenshots in the EverQuest folder.