Blasting

A spell of Aldrich Disaster Magics

A magical sigil of Aldrich Disaster Magic appears in front of your casting palm(s). Each creature in a 30-foot cone must make a Dexterity and Strength saving throw. The spell deals 12d10 Force damage to a creature within 5 ft of the casting point, damage is reduced by 2d10 per 5ft a creature is away from the spell until 0.

On a failed save a dexterity save the creature takes full damage, or half as much damage on a successful one.

On a failed Strength save the creature is knocked back until it is halfway between where it was and the end of the spell range, or no knockback on a successful one. Creatures on the end of the spell range get knocked back by 5ft on a failed save. 

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the damage increases by 2d10 and the range increases by 5ft for each slot level above 5th.