To get this Master Sword you'll have to hunt down Armored Skeletons in the hardmode underground. They have a 0.67% chance of dropping this sword. And again if found early hardmode it'll actually prove useful. It can easily mow down early hardmode mobs with little to no melee armor equipped.
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The Beam Sword is a Hardmode weapon dropped by Armored Skeletons. This weapon has the ability to...