The Fantastic Mushroom is a harvestable that can be acquired in the Frontier. It can be found from various sources and locations throughout the Frontier including but not limited to:
- Being harvested from Ancient Forest, Blackrock Mountain, Celestial Field, Celestial Peak, Frigid Waste (PvP), Gnome Magic School, Petrified Grassland, Rubble Spring, The Far Coast, The Pits, The Town of Right and Wrong, Topple Hill, Topple Town, and Twinkling Meadow.
The Fantastic Mushroom is a tall, strange-looking mushroom possessing several caps aligned and toppling on top of each other. The cap's colors are mainly composed of the colors used to depict the Frontier; red, blue, and yellow. Players can exchange 3 Fantastic Mushrooms for 90,000 gold during the Slayer's Tasks. If the player has no purpose for the Fantastic Mushroom, it can be sold for 7,000 gold.