Necromantic Storm

You tear a rift to a plane of death at a point within range, summoning forth a flood of negative energy. All non-undead creatures within 10 feet of the rift must make a Constitution saving throw, taking 6d8 necrotic damage on a failure or half as much on a success. If a creature is killed by this spell, the blast spreads, affecting a 10-foot radius around that creature as well. A creature cannot be damaged twice by the spell, and the spell ends after damaging 10 creatures.

If a humanoid dies from this spell, it rises as a _zombie_ at the start of your next turn and attacks the closest living creature. The GM may either use the zombie statistics from the Basic Rules, or the zombie template as described in _reanimation_. At the GM’s discretion, other creature types may rise as different undead.

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the maximum number of creatures damaged increases by 2 for each slot level above 5th.