Summon Undead

Spell Level: Level 3

Spell School: Necromancy

Casting Time: 1 action

Range: 90 ft

Components: V, S, M

Materials Needed: a gilded skull worth at least 300 gp

Duration: Concentration, up to 1 hour

Castable By: Warlock, Wizard

Description

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.

Source: Tasha's Cauldron of Everything