Summon Shadowspawn

level 3 - 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

Description not available (not OGL).
But here is a summary:

Summon 1 shadowy spirit (fury, despair, or fear), friendly (stat block/your lvl).

Warlock

Wizard

Tasha´s Cauldron of Everything