Detailed description of the problem:
The bottom line is that drygmas should interact only with peaceful creatures, but they also interact with hostile ones, which is why, having only one creature (cyclops, hydra, etc., as an example), it will be possible, albeit slowly, but infinitely to get resources from them with the help of drygmas.

Tags:
'art_nouveau:drugmy_charm' - The mascot of drugma
'art_nouveau:drugmy_stone' - Drygma's Dugout

Video:
https://youtu.be/vWVSI3yD8DA
https://youtu.be/bfwqIlgrO3g

There is a blacklist config to remove mobs from the loot pool.