Uhh I thought Poison Fang was fixed??
https://github.com/Zarel/Pokemon-Showdown/pull/1019
I can't access PS right now but I assume the /data for it shows the proper description and it did at the time of the hunt? Idk hehe.
This might have been an error on Instant Apple Pie. Tagging him if he would like to explain and if we should remove points for the hunt.