Sorry, I don't know the name of the shadow's trick. It might be something unique and undisclosed in the story you're referring to.
The kids in Halloween cartoons usually go from house to house in their cute costumes, saying 'trick or treat' and getting candies.
The shadow's real name was not mentioned in the search results provided, so I don't know what the real name of Joy of Life's shadow is.
Joy of Life's shadow's real name was not explicitly mentioned. Therefore, based on the information provided, I don't know the real name of Joy of Life's shadow.
There were a few different comics about shadow battles. One of them was called Blue Dragon, and other works such as The Adventures of Jacky Chan, Teenage Mutant Ninja Turtle, and Naruto also involved shadow combat elements. However, they did not provide a clear name for the anime called " The Shadow of the anime." Therefore, based on the information provided, I am unable to determine the exact name of the anime with shadows.
The name of Qing Yu Nian's shadow was Fei Jie.
In Joy of Life, the Shadow's true identity was Great Grandmaster Sigu Jian's younger brother and the son of the former Dongyi City Lord. However, the shadow's name was not provided. Therefore, he couldn't accurately answer the shadow's name.
Lord Shadow's name was not mentioned in the search results provided, so I don't know what his name is.