Exhaustion Roulette

As part of casting this spell, you summon an eldritch roulette that you roll a die into, or that you throw a dart or dagger into as it spins. Choose up to 5 creatures within range that you can see. You then select a number for each of them between 1 and 6. You may only assign one creature to one number, and only one number to one creature. After deciding this, roll a d6. The number you roll is the creature targeted by this effect, if you roll a number not assigned to a creature, then you are targeted instead. The creature must make a Constitution saving throw, or take 2d6 Necrotic damage and suffer one level of exhaustion.

At Higher Levels. When cast using a 3rd or higher level spell slot, the necrotic damage is increased by 1d6 for every single level above 2nd.