Zac
Zac chose an old, broken down car as his object to destroy. The judges gave him the nod to begin.
Zac took a breath, and then hit the car with a series of extremely high and extremely low temperature pulses. Abrupty, and with a rather loud noise, it shattered and scattered into a million pieces all over the field.
There was wild applause and Zac gave an elborate bow.
Oliver
A few contestants later it was Oliver's turn. Previously (as the oject had to be selecte beforehand) to his utter delight he had found a ride on mower with, what's more, some fuel still in it's tank. Eyes glittering with typical teenage boy pyromanatical delight, he chose this for his object to destroy.
The mower was set up, Oliver shifting his weight nervously from foot to foot. The he got the nod to begin.
He didn't even try to be subtle about it. Flames came up immediately, engulped the mower and then... BOOM! It exploded into pieces that flew all over the field. Oliver threw his arms over his head triumphantly.
"Whoo hoo!"
Isaac
A wardrobe was set up when it was Isaac's turn. A small smile crossed his face after the nod to begin and he began to squash the wardrobe flat as a pancake.
When he was done flattening it, he rolled it up as if it were mere paper with his telekinesis and made it float in the air. Naturally, being a wardrobe and thus made of wood, as soon as Isaac let go, it would fall apart.
Isaac let go.
Clark
Clark Kent was last to go in the Mass Destruction comp, but that was fine with him, the more he watched, the more ideas he had. His object was an old VW bus, from the sixties. When the judges nodded, he began.
Standing about 10 meters away from the bus, he took a dseep breath and blew ice-cold air at the bus, watching all the wondows first steam over, then freeze, until they finally shattered. Then he leaped up high in the air, and then dove headfirst down onto the bus,m his hands out, ready to flatten the center of it, until he managed to fold the vehicle in half. Finally, he backed away, and stared at it with his heat vision, using the lasers to carved Kryptonian words into the sheet metal before targetting the gas tank with his x-ray vision, and staring as hard as he could until the entire thing exploded, blasted pieces of the bus sky-high. With as self-satisfied smile, Clark bowed to the applause, and walked over to give Dawn a hug.