This a strategy that makes you invincible where you are in a cave.
When you were in the cave you have to invite someone to a party.Then stay near your party's friend(less than 1 metre) and attack all the monsters you want. They attack you but your HP bar won't be reduced,while you are near your friend,the monsters can't kill you but be careful because if you mate goes to other place the monsters can hit you again.

I met a guy who tryed to log in out evry 15 second's he got so depressed of Log In, Log out he shot himself with a bazooka
Poor Boozoka Billy :(

poor billy , at least i wanted his money before he did that :p
so poor me :(