iamboubou (myself)
5-level Evocation
A ball of pressurized air materializes in your hand and flies at the designated target area. All targets within 15ft of the sphere's target area must succeed a Dexterity saving throw or suffer 4d6 Force damage. Regardless of whether they succeed or fail that saving throw, they suffer 4d6 Thunder damage.
At higher levels: For each level above level 4, the spell's Force and Thunder damage both increase by 1d6 .