You create a condensed orb of wind in front of your character or emanating from the tip of your spear.  the sphere then launches forth striking the first target with full force and then exploding with wave to hit nearby targets.

Deals 3d8 force damage to main target, 2d8 to all creatures within 5 ft and 1d8 to all in a 10ft range. the initial target and all in a 5 ft range must make a dex saving thrown or be knocked prone by the force of the blast. on success they are pushed 10 ft away from the caster if able.