so, i know that Walpurgis night is an actual holiday, but when they started talking about it my immediate thought was along the lines of "bible black?"
While in America Halloween is a big festivity, Walpurgis Night is a celebration that became a signature event for a special region in middle Germany, the Harz mountains.
It’s said that on Walpurgis night, the witches gather to celebrate a party. Flying on brooms, muckrakes, cats, or other animals, they come to the top of the Brocken, the highest mountain of the region. There, they dance around a huge fire and worship their lord and groom, the devil, who bestows them with new magic power.
Kyouko's spear looked like Simon's drill when looking from the thumbnail.
Walpurgis Night
Traditional festival on 30 April or 1 May, celebrated in Central and Northern Europe, usually with bonfires.
Sorcerers and witches meet on that day in Germany based on the Witch Sabbath described in literature from the 15th and 16th century.