Ever Ice Orb

You harness the energy of Ice to create an ever Ice orb. This orb is 1 foot in diameter and is weightless. Upon impact with a hard surcease this orb shatters and freezes everything in a 15 ft sphere. creatures caught in this sphere can make a dex save equal to your spell casting modifier to take half damage and not be impacted by the ice. Creatures that fail their save will take 2D6 cold damage, their movement speed halved and be imposed disadvantage on dex saves until they can shrug off the ice. A creature can attempt to shrug off the colds affect by making a con save of 15. Any creature killed by this spell will begin to freeze solid and will be frozen solid if not removed form the area in the next 3 minutes. You increase the spells damage by 1D6 for every level over 1st cast at as well as the diameter of the spells effect by 10 ft per level over 1.