Minecraft Dungeons:Redstone Core

A Redstone Core is a device that can be found in the Fiery Forge. They first appear in a mineshaft-like area where the hero must activate all of them in order to proceed further. They also appear in the boss arena near the end of the mission.

Appearance
Redstone cores consist of a block of redstone encased in a stone shell.

Behavior
When the hero activates a core, it will open up and start making a loud noise while charging up, it will then fire a large heat blast in four directions that will deal severe damage and some knockback damage too if a hero, mob, or pet is struck by it. By overloading the cores, the hero damages the fiery forge. They can also be used to harm the monstrosity, since they appear in the arena. Sometimes a glitch occurs making the heat blasts from the cores freeze in mid-air.