Power Star

Power Stars are powerful items filled with magical Star Power. They're often used as fuel sources and are found all throughout the universe. On Mario's Planet, the star-shaped Power Stars only appear in the Mushroom Kingdom due to the centennial Star Festival leaving a number of Power Stars behind on that continent.

Other parts of Mario's planet have only acquainted themselves with Power Moons, which are the name given to Power Stars shaped like a crescent moon.

Description
Power Stars are naturally shaped like a star. They are commonly yellow but appear in different colors like green and red, but their colors are simply for aesthetic purposes and don't affect their overall energy. Power Stars also come in different shapes, such is the case of the Power Moon, which are Power Stars but shaped like a crescent moon. On Mario's Planet, Power Moons break off from the Moon via solid moon rocks and land on the planet's surface. Regardless of shape, Power Stars give off a noticeable radiating light.

Power Stars are filled with Star Power, a type of liquid fuel. Star Power can power a variety of machinery, such as the Comet Observatory or the entirety of New Donk City. This liquid energy is squeezed out of the Power Stars, leaving the body translucent. Most importantly, the Star Power of 120 Power Stars allows access to different worlds.

Magic performed using said Star Power is called Star Magic. This type of magic can be utilized by attaching Star Power to an object, like a Power Star on a wand for example.

Forms
Power Stars are created by Lumas transforming into them, its color depending on what color the Luma is. Power Stars can also be created by combining 5 Mini Stars, combining 5 Silver Stars, or by combining 5 bananas.

Combining 7 Power Stars together forms a Jumbo Star. Another type of large Power Stars are Grand Stars which have ball points at their tips. Their Star Power compared to a Power Star is unknown, but one can power a small sun.