King Worm is an active item in Fiend Folio, a mod for The Binding of Isaac.

Grants a random worm trinket's effects for the rest of the room:
• Brain Worm
• Flat Worm
• Hook Worm
• Lazy Worm
• Ouroboros Worm
• Pulse Worm
• Ring Worm
• Tape Worm
• Trinity Worm
• Whip Worm
• Wiggle Worm

Multiple worm effects can be stacked in the same room.

King Worm can be found in the following item pools:

The following tags are applied to this item:

The following special synergies and interactions for King Worm have been documented.

* Note that not all possible synergies and interactions are listed here.

• Check out the item description on the mod's external Wiki.
• Download Fiend Folio from the Steam Workshop.