vaporise

choose one creature or object no larger than 100x100x100 feet, the target must make a constitution saving throw a building or object fails this save automatically if a creature fails this save then they are instantly killed and vaporised, turning into a cloud of gas, on a success they take 10d10 necrotic damage, this spell is comparable to power word kill but with a higher risk higher reward function. after casting this spell you suffer 1 level of exhaustion.