Saint

Saints are powerful people on the Magic Side, with less than 20 of them in the world. Their existence is also called 'Child of God', and marked with a Stigma.

The theory behind their power is based on Idol Worship, where a replica of a more powerful being/item can also gain a tiny portion of the original's strength. Humans are said to be made in the image of God, and Saints are said to be a higher replica that can bring out more strength.