Destructive Wave

Casting Time: 1 action
Range: Self (30-foot radius)
Duration: Instantaneous
Each creature you choose within 30 feet of you
must succeed on a Constitution saving throw or
take 5d6 thunder damage, as well as 5d6 radiant
or necrotic damage (your choice), and be
knocked prone. A creature that succeeds on its
saving throw takes half as much damage and isn't knocked prone.