Also known as: 禁忌「レーヴァテイン」, レーヴァテイン, 莱瓦汀
The legendary Wand (or sometimes Sword) of Loki (Mythology) from Norse mythology. Flandre Scarlet of the Touhou series incorporates this into one of her Spell Card attacks in Embodiment Of Scarlet Devil, where she turns laevatein into a giant flaming sword.
Not to be confused with Signum's Laevatein (Nanoha).