Create Corpse Spiders

Flesh and bone erupt from every corpse within 10 feet of the point targeted, knitting itself into twisted spiders under the caster's control.

The spiders have the stat block of Corpse Spiders, and the amount created is dependent on the sizes of the corpses they are created from: Small: 1, Medium: 2, Large: 3, Huge: 4, Gargantuan: 6. For any Huge or Gargantuan corpses, you can instead weave a Giant Corpse Spider, using these values instead: Huge: 1, Gargantuan: 2.

If you stop concentrating on the spell before it reaches its full duration, the remaining corpse spiders begin to ravenously swarm the creature nearest them as they rot away, dying their final death in 1d4 rounds. During this period, they lose their ability to create more corpse spiders.

At higher levels:
When you cast this spell using a spell slot of 5th level or higher, the radius at which corpses are affected by the spell increases 5 ft. for every second spell level above 3rd.