The Flame of Judgment takes the appearance of an arrow of fire inserted into its victim. While the victim does not suffer any ill effects from the insertion, the Flame of Judgment curses its victims' lifeline to be tied to its flame; when the flame goes out completely, the victim will be completely drained of their life energy and die. Only the Erazor Djinn has the power to remove it manually; any lesser magical beings like genies of the ring do not have the power to undo it.
When the flame nears the end of its lifespan, side effects the victim suffers include episodes of physical weakness. When Sonic tries to take the flame out himself or extinguish it with his hand, the curse seems to intensify, thus causing supernatural effects (sand and wind circle Sonic in an almost destructive manner). Also, the Flame neutralizes all attacks against fire-based beings such as the Ifrit Golem.
When Sonic and Shahra first entered the world of the Arabian Nights, they were attacked by Erazor. When he found out that Shahra refused to gather the World Rings for him, he shot a flaming arrow at her as punishment, but Sonic jumped in front of her and took the hit instead. Erazor then uses the arrow to blackmail Sonic and Shahra into helping him gather the World Rings, promising to remove the arrow if Sonic gathered all of the seven rings for him.
By the time Erazor summoned the Ifrit Golem,half of the flame had been extinguished, and it was almost completely out by the time that Sonic and Shahra entered Erazor's palace. Apparently, the curse was negated when Sonic transformed into Darkspine Sonic thanks to the World Rings, as the arrow seemingly dissipated following his transformation.