In the 1st Cardcaptor Sakura movie, Yelan Li, Syaoran’s mother, also uses the same magic compass.
It is shaped like an 8-sided star with the cardinal points on the edges and the symbols of Gold, Wood, Water, Fire, Earth, Clouds, Rain and Electricity on the 8 points as well as the I Ching Divination lines beneath that. In the middle, there is a Tao symbol.
Symbols description: From the characters closest to the yin-yang symbol and going around clockwise, read:
- 冬、春、夏、秋 - Winter, Spring, Summer, Fall
- 水、火、風、地 - Water, Fire, Wind, Earth
- 北、東、南、西 - North, East, South, West
- 天、鬼、地、神 - Heaven, Demon, Earth, God
Acording to Cerberus, it used to be the property of Clow, who created the board to localize the Clow Cards, using oriental/Chinese magic, which he inherited from his mother. Apparently, he had left it with her when he moved to Tomoeda, so, after his death, it was passed through generations by the Li Family (descendants of Clow) until it was given to Syaoran. When he left for Japan, he took it with him, so it would help guide him in his hunt for the Cards.
Only a person with magical powers can use this device (Meilin Li tried to use it to find the The Fight, but it was useless). When used, a white glow comes from the middle of the board, then it fires a beam towards the direction of the Card. It is not only a board, in the first Cardcaptor Sakura movie, Yelan Li summoned a magic circle shaped like the board to find the entity that had called Sakura to Hong Kong.
In the manga Syaoran used it to see if Sakura had been capturing Clow Cards and to help find Toya when the Mirror card led him to the edge of a cliff. While trapped inside the Maze, Syoaran's attempt to use the Rashinban to escape failed. The Rashinban became useless near the end of the Clow Card arc due to the large amount of magical energy gathering in the city.
In Cardcaptor Sakura (Original Anime): "The kings of gods command gods appear from all directions. Gold, wood, water, fire, earth, thunder, wind, lighting. The New Command. Soft Thunder, Spinning Thunder."
In Cardcaptors (American Dub adaptation by Nelvana): "Source of light with ancient spin; send forth the magic power within. Oracles of Gold, Wood, Water, Fire, Earth, Cloud, Wind, Rain and Electricity. Force; know my plight, release the light!" - Cardcaptors Episode 8: "Sakura's Rival Appears", is the only time we hear the full incantation of the Rashinban. After that, it's shortened down to just, "Force: know my plight - release the light!", throughout the rest of the series. Also, it's the same incantation he uses when using his sword to summon his magic too, ending it with the element he requires the use of when needed.
In Tsubasa: Reservoir Chronicle
The board itself does not appear in this series. However, it is portrayed as a magic circle, used by Tsubasa Li, with a similar design.