Sydney is mostly a girls' name, but it is used for boys 4.31 percent of the time.
The Sigil of Lucifer, the symbol of Satan. A sigil is a magical symbol, a symbol believed to hold connections to a greater supernatural power. Sigils are often related to Religion.
Many runes and sigils are personal, as in you can draw or carve anything with intention and think power to the lines as you draw or carve, to cause it to possibly work. To know of runes, in its history, go to this site or this mirror site.