Black Hole

You conjure a swirling vortex of crushing gravitational energy, sucking all creatures towards it's center. Any creature within 50 feet of the black hole must make a strength saving throw, or be sucked into the negative plane. Any object that is not being worn or carried automatically fails the save. On a successful save, the creatures movement speed is reduced to 0. Once the black hole sucks up Five objects or creatures, roll a d20. On a roll of 1-10, no effect. On a roll of 11-20,the black hole collapses inward, and forms a superluminous supernova. Each round, the supernova moves 10 feet in a random direction. Any creature within 10 feet of the supernova takes 12d12 fire damage, and is pushed 5 feet away from it in a random direction.