I hate them wholeheartedly (T＿T)

They are hard to kill, I'm floor 45 using silver sword and still only deal 1hp dmg to them. I need probably 20x hits or more to kill them. Between each hit i need to dodge their shooting stones. They don't drop anything good either. Many times when I was about to fish in mines, they hit me, I got interrupted and fish is gone. •n•