Edge of the Void

You summon a blade of negative energy to slash at one creature in range. Make a ranged spell attack against the target. On a hit, the target takes 3d6 necrotic damage. The blade then vanishes and reappears at the side of a second target of your choice within 30 feet of the first. If the attack roll would also hit the second target, it deals 2d6 necrotic damage to the second target. It can vanish and reappear once more at the side of a third target of your choice within 30 feet of the second target, and if the first attack roll would also hit the third target, it deals 1d6 necrotic damage to the third target. Each target that the attack hits must also succeed a Charisma saving throw or have their speed reduced by 10 feet until the beginning of their next round.

A creature can be targeted only once by each casting of this spell.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, each target takes an extra 1d6 necrotic damage for each slot level above 1st.