Thunderous reverberations fill a 10-foot Emanation [Area Of Effect] originating from you for the duration. Whenever the Emanation [Area Of Effect] enters a creature's space and whenever a creature enters the Emanation [Area Of Effect] or ends its turn there, the creature makes a Constitution saving throw. On a failed save, the creature takes Thunder damage and has the condition until the start of your next turn. On a successful save, the creature takes half as much damage only. A creature makes this save only once per turn. When you cast this spell, you can designate creatures to be unaffected by it.
Cacophonic Shield
Level 3 Evocation · Concentration
Casting Time1 action
Range10 feet
DurationConcentration, up to 10 minute
Components
V, S
Spell Description
ThunderUsing a Higher-Level Spell Slot
In addition, you have Resistance to Thunder damage, and ranged attack rolls against you are made with Disadvantage.
The damage increases by for each spell slot level above 3.