"This should be fun, hehehe!"
Saying so, Arya extended her hand and opened her palms on which a black flame got ignited and turned into a ball. Arya closed her fist and pitched the ball straight at Eric.
BOOM!
Moving faster than the speed of sound, the ball created a sonic boom loud enough to crush the eardrums of anyone below rank 3; thankfully Arya had made a barrier around, so the spectators–the students, were safe.
It didn't take even a second for the ball to reach Eric and with a loud explosion, a mushroom cloud arose from where Eric was standing.
Eric avoided it by casting an earthen barrier around, just in time to avoid the hit and vanished from his spot with wind elemental energy. Now standing at a corner, Eric cast on himself 'Fire God's Protection'–a King rank spell that burnt every elemental energy with contact except for fire.