What is a one-sentence summary of the following article?
Continue to slaughter Swamp Things and Frankensteins. Congratulations, you now have the one of the strongest swords in the game!

Summary:
If need be, wait for more Solar Eclipses. Combine True Excalibur, True Night's Edge, and a Broken Hero Sword at a Mythril/Orithcalum Anvil.