Corpse Explosion

The caster spins a web of necromantic energy, seizing control of a corpse within 150 feet of them, sending it sprinting at a target of their choosing within 60 feet of the corpse and 150ft of the caster. The targeted creature, and it and any additional creatures within range must immediately succeed on a Dexterity saving throw, or suffer 2d6 Piercing and 2d6 Necrotic damage, and taking half damage on a success.

The targeted corpse for the material component of the spell may be a zombie minion controlled by the caster. If any creatures have been grappled by a targeted zombie, they must make the Dexterity save at disadvantage. Any non-magical equipment carried by the zombie is destroyed upon detonation.

A Construct, Elemental, Plant, or Ooze may not be used as a component for this spell

Tiny                    A Tiny sized creature has no splash range, and only damages the targeted creature
Small                 5ft damage area
Medium             10ft damage area
Large                 15ft damage area
Huge or larger  20ft damage area

At higher levels. When you cast this spell using a spell slot of 3rd level or higher, you can add an additional D6 of damage for each damage type.