What are the odds of finding hellstones on bitefight

none you have to buy them or illegally hack them (i preferably like the first choice)
or you can hunt the people on 10 min. it is hard but i got some odds are 1:100
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its not impossible to find them but its also not common. i have found 15 hellstones in the grotto, odds whould be more in the 1:5000 not 100 its rare to get them so saying 100 is like saying everybody would get them every 20 days. but i guess that is the whole point of this game, which is that it takes a long time to play.