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. It is also because of that reason, that Saints in general are weak to attacks that resemble how the son of god was killed (being stabbed by pointy objects etc...), Acqua being a double saint, is affected even more.