No need to any Protection from magic spell or amulets or items.

Just choose a character (Press between 1-4 buttons) (this character will die) Then right click to the Mini map(right upper side) (hold and dont release right clik) Then press and hold space button. Choosen character starts and drinks then turns to the stone then eradicates but still drinks from water )))

Then you can sleep or watch tv for 1-2 or hours and you are at maximum level and all.

Note: You can use Sticky tape to mouse's right click button and space too.