The Juggernaut is a thermometer-like hammer with a golden atlas figurine and an inner tube containing the Vial of Quicksilver used to craft it. The quicksilver shifts in response to the players swings.
The users body is coated in quicksilver. The color of the metal changes depending on:
The dye on the users armor
The ambient light (specifically, the color of the reflection cubemap designated for the region of the map and time of day, and as a result, shadows and direct light sources by themselves do not affect the armors effect)
When drawn, quicksilver swirls around the users body.
The user leaves behind drops of quicksilver.