Darkened Sun

You collect and gather all the shadow in your vicinity and concentrate them into a ball of pure darkness. It writhes and swirls in the casters palm until it is released unto an unsuspecting opponent.

You cast the spell at a point within range. On impact the orb explodes into a swirling cloud of darkness. All creatures within a 20 ft. radius must make a constitution save. On a failure the targets take 4d10 cold damage and are blinded for 1d4 turns. On a success they take 1/2 damage and are not blinded. If a creature starts or ends its turn in the cloud they take an additional 1d10 cold damage.  The cloud lingers until your next turn and cannot be seen through by non magical means. 

If cast at a higher level, the initial damage for this spell increases by 1d10 for each spell level above 3rd and lingers for an extra round.