death storm

a multicolored storm covers a 100 by 100 feet area. all creatures inside are restrained. round one: acid rain comes down from the storm. all creatures inside take 12d6 acid damage. round two: ice shards rain down from the storm. all creatures inside take 3d20 cold damage. round three:  astroids start to come down from the storm. all creatures inside take 12d6 fire damage. round four: 100s of lightning bolts strike down. all creatures inside take 10d10 lightning damage. round five to six: a melting sunbeam shines down. all creatures inside the storm take 3d12 fire damage. round seven to nine: lasers beam come down from the storm. all creatures inside the storm take 10d6 force damage. round ten: a black hole opens in the storm. all creatures that are at one hundred hp are sucked into the hole and killed, leaving there xp and valubles behind. creatures that are above 100 hp take 10d10 necrotic damage. the storm then ends and leaves a 100 by 100ft puddle on the ground. all companions inside the storm are portected and take no damage. they are also not sucked into the black hole.