Dark Rigel

Dark Rigel (ダークリグル, Dāku Riguru), or simply known by it's lesser used name of Black Ice Magic (ブラックアイスマジック, Burakku Aisu Majikku), is a type of Caster Magic and subspecies magic ability of Darkness Magic and Ice Magic, and is thought as being the polar opposite the to it's distant relative Dark Regulus. As one of the only styles of magic that incorporates the use of both ice and darkness into a single system of spells, it does so in order to produce a unique variation of ice known as, making them a viable tool to be used against both fire and light magic. Unlike ordinary ice, the element produced by Dark Rigel is encompasses the more unstable aspect of Ice magic, enabling the caster to achieve higher feats due to the special properties it has in comparison to other ice oriented magic arts.

Description
Part of a series of magic arts that encompass the fusion of both darker elements with pre-existing ones, Dark Rigel is the the result of a certain wizard combining the elements of ice and darkness together, in order to better create a style of magic that best complimented both elements into a single, effectively giving birth to a subspecies element of ice that incorporates darkness inside every ice construct or frozen creation they dispatch with their magic energy. Functioning much in the same as ordinary Ice Magic,

Trivia

 * Rigel (β Orionis, β Ori, Beta Ori) is the brightest star in the Orion constellation and one of the brightest stars in the night sky.