Ice King "Do you know what Ice King means?!"
This article is a stub. Please help the Adventure Time Wiki by expanding it. Thanks!

Is waiting for the rising...

—Grass Demon

Grass Demon is the name given to a creature by Finn Sword that originated from the Grassy Wizard's cursed sword. The demon first appears briefly in "Reboot", and then in a flashback in the episode "Two Swords" where it describes itself as "a curse, an emissary from beyond" before helping Sword Finn escape from inside the Finn Sword.


The demon is a small creature, roughly the size of a human head, that resembles its personal description as "some kind of grass octopus-spider".


From its initial appearance, the Grass Demon maintains a calm and a somewhat cheerful disposition. It seems to enjoy covering surfaces with a sticky substance similar to spider silk as it coated "interior" of the Finn Sword with its webs.