Summon Shadowspawn

From Tasha's Cauldron of Everything, page 113.

Description
3rd-level conjuration


 * Casting Time: 1 action
 * Range: 90 feet
 * Components: V, S, M (tears inside a gem worth at least 300 gp)
 * Duration: Concentration, up to 1 hour

You call forth a shadowy spirit. It manifests in an unoccupied space that you can see within range. This corporeal form uses the Shadow Spirit stat block. When you cast the spell, choose an emotion: Fury, Despair, or Fear. The creature physically resembles a misshapen biped marked by the chosen emotion, which also determines some of the traits in its stat block. The creature disappears when it drops to 0 hit points or when the spell ends.

The creature is an ally to you and your companions for the spell's duration. In combat, the creature shares your initiative count, but it takes its turn immediately after yours. It obeys verbal commands that you issue to it (no action required by you). If you don't issue any, it takes the Dodge action and uses its move to avoid danger.

At Higher Levels: When you cast this spell using a spell slot of 4th level or higher, use the higher level wherever the spell's level appears in the stat block.

Learned By

 * Classes: Warlock (OCF), Wizard (OCF)
 * Subclasses: Fighter (Eldritch Knight), Rogue (Arcane Trickster)