The following is some of the facts about this character, which sounds really lame.
Asura (Sanskrit, Pāli: असुर; Tibetan: Lhamayin; Japanese: 阿修羅 Ashura; Korean: 아수라; Chinese: 阿修罗; pinyin: Āxiūluō, Vietnamese: A tu la) in Buddhism is the name of the lowest ranks of the deities or demigods of the Kāmadhātu. They are described as having three heads with three faces and four to six arms.
The Asuras formerly lived in the Trāyastriṃśa world, on the peak of Mount Sumeru, with the other gods of that world. When Śakra became the ruler of that world, the Asuras celebrated by drinking a lot of Gandapāna wine, a liquor so strong that Śakra forbade the other gods to drink it. Weakened by their drunkenness, the Asuras could not resist when Śakra had the whole lot of them thrown over the edge of Trāyastriṃśa into what would become the Asura-world at the base of Sumeru. A tree grows there called Cittapātali; when the Asuras saw it blossom, they saw that it was different from the Pāricchattaka (Sanskrit: Pāriyātra) tree which had grown in their old home, and they knew that they were dispossessed.