Cluck, the Harbinger of Death

An Entity of Necessity. If Cluck dies, he is resurrected 1d4 days later.

Innate Spellcasting. Cluck's innate spellcasting ability is Charisma (spell save DC 19, +11 to hit with spell attacks). It can innately cast the following spells, requiring no components:

At will: fireball, animal friendship, Hellish Rebuke (3rd level), animal messenger, inflict wounds (3rd level)

2/day each: dominate monster, hold monster, wall of stone

1/day each: psychic scream

Being of Advanced Magic. If possible, Cluck can cast multiple leveled spells per turn (Ex: Cluck can cast a leveled action and bonus action spell.)

Metamagic. Cluck has 12 sorcery points and can spend them on the available metamagic options. Quickened Spell, Twinned Spell, Transmuted Spell

Peck. Melee Weapon Attack: +6 to hit, reach 5 ft., 1 target. Hit: 4 (1d4 + 2) piercing damage. 

Call the Flock (Recharge 6). Cluck summons 7 Cockatrices in a 10 ft radius.

Cluck can take 2 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. Cluck regains spent legendary actions at the start of its turn.

Detect. Cluck makes a Wisdom (Perception) check.

Cast a Spell. Cluck Casts a spell