Shinsei Bakuha

7th-level evocation

Casting Time: 1 round (requires concentration)

Range: Self (60-foot radius)

Components: V, S, M (a shard of a holy relic)

Duration: Instantaneous

You charge energy over the course of a round, creating an intense buildup of radiant power. On your next turn, you release it in a devastating explosion that affects all creatures in a 60-foot radius centered on you. Each creature must make a Constitution saving throw