It was too late when the aura around her horn became only more and more. Rarity had truly lost all control over both her horn and legs. She didn't even knew to what. A thing that probably would have been for the better. Nevertheless, she feared just what would happen with her charged horn. In response she simply closed her eyes forcefully as the humming sound only increased. The horn coated itself deeper within its signature blue aura and with some more seconds that passed there a powerful blast fired.