Shroud of Turin

Shroud of Turin (トリノの聖骸布, Torino no Seigaifu) is a form of Caster Magic that is either classified as Supplementary Magic or Support-magic that serves only one purpose, that is, to enhance or amplify one's magic power drastically so as to increase one's capabilities; specially physical, and by extension, their combat skills.

Trivia

 * The Shroud of Turin or Turin Shroud is a length of linen cloth bearing the image of a man who appears to have suffered physical trauma in a manner consistent with crucifixion.