Achievement
Sword of the Hero
Sword of the Hero is a Terraria achievement. 
Terra Blade counts toward it.
Description
Obtain a Terra Blade, forged from the finest blades of light and darkness.
What counts
Pick up all of these:
Achievement
Sword of the Hero is a Terraria achievement. Terra Blade counts toward it.
Obtain a Terra Blade, forged from the finest blades of light and darkness.
Pick up all of these: