Wrath of Gold

When you cast this spell, you and all creatures of your choice within a 30-foot radius centered on you must make a Constitution saving throw. A creature takes 6d8 radiant damage on a failed save, or half as much damage on a successful one.

Additionally, for the duration of the spell, every creature that starts its turn within the spell's radius takes 2d8 radiant damage if it is not wearing or carrying at least 100 gp worth of precious metals (gold, platinum, etc.). A successful Constitution saving throw halves this damage.