So I found a cave spider spawner in the wild and I don't know what to do with it. I guess I want to create a mob grinder/trap, but I have little to no supplies down in this cave and I have no idea how to make one. Does anyone know of a mob grinder/trap that only uses water and stone? =/Also, I've heard of these things coordinates being sold to people. Around how much does a cave spider mob spawner go for?And yes, I know it probably won't be bought unless it is made into a mob grinder/trap.... So please if anyone could help me that would be great. Thanks!