Without even thinking, my hand grasped the hilt of Excalibur. The power I felt from close proximity was far greater than I thought. The sword was thrumming with power, practically vibrating. A sense of familiarity from the blade was all it needed for the next step. Pulling the sword out with ease, causing a shing sound to be heard as the blade scraped against stone. Once the sword was out of the stone, I slashed the blade through the air. A massive arc of pure aetheric magic erupted from the blade. A mixture of gold, blue, and white magic flew through the air towards the Dementor. As the magic left the sword, the lights in the room flickered, the effect of one of the features of the sword.