Board Thread:New on Terraria Wiki/@comment-8125188-20130413131802/@comment-62.254.75.244-20130419201138

A cross necklace is obtained by killing a mimic, and gives a short moment of invunrebility when hit. You probably know what hellstone does (IT BUURRNNS) so you'll take next to no damage from Skelly/SkellyP and minimal damage from hellstone. Just don't jump.

From Ninjadude360~ / /(= (' )_(' )=) <-- Ninja art. What do you think? =p