Agni's Festival Fire (アグニの祭火 Aguni no Matsuribi?) is a magic spell that is used by the magic cabal Gate of the Gods Come from the Heavens. As its name suggests, it is a magic spell that uses fire. Based originally from the Agni Astra, it can be modified to create a highly destructive large-scale magic spell. It's infamous as the spell used to attack a large sports gym in New Delhi two years prior to the main storyline of Toaru Majutsu no Index. It's usage by the magic cabal is what throws Kamijou Touma into the plot of Toaru Majutsu no Index: Road to Endymion.