Cacophonic Shield

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 🎲3d6 🔊 Thunder damage and has the Deafened 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.

In addition, you have Resistance to 🔊 Thunder damage, and ranged attack rolls against you are made with Disadvantage.

The damage increases by 🎲3d6 for each spell slot level above 3.