Spongy

Spongy gets -1/-1 for each other creature
you control.
Vigilance
{1}{w}, Pay 7 life, {t}, Return Spongy to your
hand: Destroy all other creatures.
"I like to skydive, and play ping pong, and
table tennis, and tightrope walk, and fly in
balloons, and fly in planes, sail airplanes, and..."