Starting at 14th level, you can use magic to bring undead under your control, even those created by other wizards. As an action, you can choose one undead that you can see within 60 feet of you. That creature must make a Charisma saving throw against your wizard spell save DC.

The spirit resembles an undead creature with the chosen form, which determines certain 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.

When you cast this spell using a spell slot of 4th level or higher, you animate or reassert control over two additional undead creatures for each slot level above 3rd. Each of the creatures must come from a different corpse or pile of bones.

At 1st level, the Undead lets you choose from an expanded list of spells when you learn a warlock spell. The following spells are added to the warlock spell list for you.

School of Necromancy magic whose spells manipulate the power of death, unlife, and the life force. Spells involving the undead made up a large portion of this school, including animate dead and finger of death.

At 18th level, you have achieved such mastery over certain spells that you can cast them at will. Choose a 1st-level wizard spell and a 2nd-level wizard spell that are in your spellbook. You can cast those spells at their lowest level without expending a …

Source: Player's Handbook. 6th-level necromancy. Casting Time: 1 minute Range: 10 feet Components: V, S, M (one clay pot filled with grave dirt, one clay pot filled with brackish water, and one 150 gp black onyx stone for each corpse) Duration: Instantaneous You can cast this spell only at night. Choose up to three corpses of Medium or Small humanoids within range.

This feature cannot be used against creatures that are undead or constructs. Once you use this feature, you can’t use it again until you finish a short or long rest. Thicker than Water. Upon reaching 14th level, the blood that flows through your veins is empowered with arcane vigor that mends wounds and helps preserve your life.

Tiny Servant; Tiny Construct: Armor Class: 15 (natural armor) Hit Points: 10 (4d4) Speed: 30ft., climb 30 ft. STR DEX CON INT WIS CHA; 4 (-3) 16 (+3) 10 (+0) 2 (-4) 10 (+0) 1 (-5) Damage Immunities poison, psychic: Condition Immunities: blinded, charmed, deafened, exhaustion, frightened, paralyzed, petrified, poisoned Senses: blindsight 60 ft. (blind beyond this radius), passive Perception 10

The Wizard Wizards are supreme magic-users, defined and united as a class by the spells they cast. Drawing on the subtle weave of magic that permeates the cosmos, wizards cast spells of explosive fire, arcing lightning, subtle deception, brute-force mind control, and much more.