The Wishstone is a powerful item in Wario: Master of Disguise that was said to make the wish of anyone come true. However the Wishstone had been broken into pieces. During the game, Wario, Carpaccio and Count Cannoli were all fighting to get all the fragments. The story of Poobah the Pharaoh was also written on the Wishstone. Snow Globes, Thorn Weeds and Seed Weeds were all created by the powers of the Wishstone.
At the end of the game, it is revealed that a demon named Terrormisu was trapped inside the Wishstone. Reassembling the Wishstone caused her to break free, but she was stopped by Wario.
Writings on the Wishstone
“...Five made one...and one went before our Pharaoh... Our great leader... met the great stone and made...a pact... ...so Pharaoh made a wish...and the stone granted it...but then...a pact... ...We made one back into five...and we scattered them to the winds...”
“...the wishes were...bargained for...the Pharaoh's dreams...made real... ...his dynasty preserved forever...the Pharaoh forever...in his palace... ...palace turned into a pyramid...pyramid buried under the sand... ...and one piece of the stone...buried alongeside him...”
“All...all of...shstones...sought... All pieces are collected... the wish...to... That is when...all of...wish...may be granted.”
The whole story
“Behold! We cast our hopes with he who gathers the five Wishstones. Long ago, there lived on this continent a king consumed by the sickness of greed. The king was an evil man, and greatly desired a granted wish above all things. With proud heart, the king called forth a demon who agreed to grant his wish. But it came at a terrible price, for the demon asked him to starve his people. And thus the king agreed. But the king soon learned that demons are sly, and his wish was honored not. The demon stole all the king held dear, and crumbled his land to dust. Time rolled past, the living perished, and all the land became as a desert. The king’s palace was to a pyramid transformed, and sunk under the sand. But yet the king--a soulless, lifeless thing--lived on in his dead house. Eons passed till hope appeared, and a man dared cross the lifeless land. This man talked softly to the demon, and wooed it with his words. And when the demon’s guard was low, he changed his very form! He sealed the furious demon in stone, and split it into five. To those who dare to seek all of the wishstone, take heed. If you can all the five pieces join, then you must slay the reformed demon. But if such is done, then the heartfelt wish of all the people shall be made real.”