With his wand up, Adrian started with a full-fledged attack, devil's gravity. Keeping Isis out of this, he managed to increase the room's gravitational pull by a thousand to keep the overpowered Professor in one place. The power of his attack began to sink the entire floor and the roof started to slowly crumble down at his power.
Like ice magic, gravity had almost no limitations with what one could do—once mastered, a mage was capable of sinking an entire island with just one spell.
'Hmph! Impressive.' Obsidian thought as he stayed in one place, standing as the ground below him crushed itself in. He had a mana skin around him to protect him from gravity's pull so this was nothing. He then pointed his index finger at the young mage as he prepared to fight back. With focus, a small white hue appeared at the tip of his finger, then, something propelled from it with an incredible force.