The Herbalist is a giant indigo caterpillar-butterfly hybrid. The lower half of his body is caterpillar-like, with light blue patterning on the back. Meanwhile, his upper half is more butterfly-like, including light green butterfly wings. He has three glowing light green-blue eyes, and two horns on his head. He has lots of moon-related imagery and symbols scattered throughout his body, including a small plate with a crescent moon engraving that appears to act as his heart.