It looks like magecraft to me but if it's powers from your world it's probably something else. I don't think you look that young Aether. You might be around twenty? You seem older than me but not older than my father.

[He'd be about as old as the graduating class in college or something. Aether seems mature so he comes off as wiser to Shirou. He nods at Childe. ]

A blessing by the gods sounds like some strong magic. I'm really interested in how it works. It's okay if I can't learn it myself. I'm not that good at magic anyway.