boss

Mothron

A Solar Eclipse mini-boss that drops the Broken Hero Sword and Mothron Wings.

HardmodeEvent1.4.5.6#32Optional

Mothron is a mini-boss that appears during the Solar Eclipse. It flies in straight dashes and can pass through blocks. Drops the Broken Hero Sword (used for Terra Blade and Vampire Knives crafting) and the Mothron Wings.

Type: Solar Eclipse mini-boss
Health: 5,600 / 8,400 / 10,710
Event: Solar Eclipse
Drops: Broken Hero Sword, Mothron Wings, Death Sickle

Sources

Terraria Wiki