Iron Shakespeare

Iron Shakespeare is a huge suit of armor roaming around the Level 3 Basement.

Lore
From what can be gleamed from the little information given to the player in the game, the armor used to be a man called Iron Shakespeare. Shakespeare was most likely the name, and 'Iron' must be an epithet or title given to him, most likely because of how heavily armored he was and how strong he was. It's also of note that the suit of armor can carry two metallic lantern gauntlets that could be lit up and cause fire damage, again showing of the former man's strength.

Although the battle graphic shows bloody wounds from severing body parts, examining the body afterwards has the body make a hollow noise, suggesting the human within the armor is gone.

Strategy
It can set it's lantern arms alight and cause burning damage which is likely lethal to a player first exploring the prison.

Loot
On defeat it drops the basement level 3 key.

A soulstone can be used on the body, providing a generous defensive buff as an equippable item.