Yamato

Cast Time: 1 action Range: 90 feet (20-foot radius) Components: V, S, M (a handful of soil from a cursed battlefield) Duration: Concentration, up to 1 minute A wave of cursed energy seeps into the land, creating an area of death and decay. The affected area is difficult terrain and any creature that starts its turn in it must make a Constitution saving throw or take 7d10 poison damage. Any creature reduced to 0 HP by this spell cannot be revived except through Wish or Divine Intervention.