JamestheGamer
Terrarian
So, the way I killed the Eater of Worlds early was simple: I first went to get Arkalis, a sword made by the developer a similar name. It is an excellent sword that has a 10% drop rate from an enchanted sword shrine, and it swings fast. Then get some explosives and armor. Head to the Corruption, blow up three shadow orbs, and destroy the EOW. Hope this helps anyone pre hardmode wanting shadow armor!