Dark Orb

You hurl an orb of shadow at a target within range. The target must make a Wisdom save. On a failed save, the target takes 3d8 psychic damage, half as much on a successful save.

If you roll the same number on two or more of the d8s, the shadow leaps to a different target of your choice within 30 feet of the target. If the second target witnessed the attack on the first target, it will make its saving throw with disadvantage. 

Using a Higher-Level Spell Slot. The damage increases by 1d8 for each spell slot level above 1. The orb can leap a maximum number of times equal to the level of the slot expended, and a creature can be targeted only once by each casting of this spell.