User blog comment:Exdrmm/i need help with hardmode:p/@comment-5006923-20120502125905

Make a platform of Hellstone, Meteorite ore, or any other ore. Unequipe any obsidian item, then put down a hearth statue with a 1-second or 3-second timer. If you've got over 35 defence, you will only take 1 damage and if you equipe a Cross Necklace, the boss will almost be unable to damage you. Though always use potions for: regen, ironskin, thorns and such. After you've done that just stand on it and summon the boss you would like to kill.