You cause creatures to be disoriented when you affect them with a spell that has the sonic descriptor.
Prerequisite(s): Ability to cast 3nd level spells
- When you deal thunder damage with a spell, a concussive wave of energy rattles creatures affected by the spell. A concussive spell causes creatures that take damage from a spell that has the sonic descriptor to have disadvantage on attack rolls, saving throws, skill checks, and ability checks for a number of rounds equal to the actual spell level of the spell. A concussive spell only affects spells with the sonic descriptor. A concussive spell uses up a spell slot two levels higher than the spell’s actual level.