As Twilight Sparkle slowly floats into the air, magic beams lance out from her horn striking around the room randomly so much so that everypony misses Dawn's own horn flare to life with wild magic.
A lance of purple magic strikes the instructors causing them to float as well as being knocked unconscious by the overwhelming magical pressure.
A massive beam strikes out at the Dragon egg from the test, releasing a brilliant purple and white flash which then reveals the egg was hatched. Though as the newly born drake looks up to the floating lavender filly another bolt of lavender magic strikes him causing the drakeling to grow in size rapidly. Quickly outgrowing the cart that his egg was brought in on, soon the drakes head reaches the ceiling before it easily overpowered the wards that were to contain wild magic, now with a large hole in the roof provided by the now massive dragon.
Dozens of lavender flares of magic begin darting out of the room through the hole, acting much like fireworks.
The other beam strikes the filly's parents rendering them as nothing more than potted plants, the beam missing Dawn by a very small margin as the filly had taken several steps towards her sister.
Dawn's luck however soon runs out as another fairly large beam of magic strikes her, causing her barely controlled magic to be pushed over causing her to Surge as well.
Canterlot Royal Gardens
Celestia POV
As Celestia enjoys her mid-morning tea and cake, a ritual that no being has ever dared to interrupt is startled when a rainbow wave of light(and magic) races across the sky following a loud Boom of something breaking the sound barrier. Though she is surprised it mostly comes from witnessing such a rare event as a sonic rainboom.
As the rainbow fades from view, Celestia raises her teacup up to her lips when she is startled for a second time by the roof at her School for Gifted Unicorns explodes as a massive dragon's head rises into the sky. Seconds later Celestia is hit by a massive wave of magical pressure, causing her levitation spell on the teacup to give out, the sure sign of somepony having a magical surge. Celestia realizes that she will need to intervene because as soon as she realized what was going on another wave threatened to send Celestia to the ground as another powerful pony begins to surge. Quickly trotting towards her School Celestia begins to hope she arrives in time as a surge as big as the two she can feel usually results in the pony's death.