User blog comment:Eitan101/Cant Beat Eater of Worlds/@comment-94.0.195.13-20120208215318

Get A Muramasa and ideally Gold Armour. I defeated him with 200 health by standing in one spot swinging my sword. If possible, get health, thorn and ironskin potions. If things get really desperate, get swiftness potions to run away quickly.