The Metal Monstrosity is a craftable Pre-Hardmode non-consumable spiky ball. It throws a heavy gravity-affected metal ball that breaks upon hitting a tile or enemy. Upon breaking it releases 3 spiky balls and 3 spikes that stick into enemies inflicting damage over the time and fading away shortly after.
Performing a stealth strike with the Metal Monstrosity will make the metal ball shoot several spikes in random directions until the metal ball breaks.
Its best modifier is Flawless.