Chicken

The Wrath of the Gods. DON'T ATTACK THE CHICKENS.

Spellcasting. The Chicken is a 20th level spellcaster. Its spellcasting ability is CHA (spell save DC 20, +20 to hit with spell attacks). The Chicken has following Wizard spells prepared:
Cantrips (at will): Prestidigitation, Thaumathurgy                                                                                                                               
1st level (20 slots): Cause Fear, Charm Person, Detect Magic, Comprehend Languages, Disguise Self, Feather Fall, Magic Missle, Thunderwave (just learned)                                 

2nd level (20 slots): See Invisibility

3rd level (20 slots): Animate Dead, Counterspell, Fireball, Haste, Bestow Curse, Remove Curse, Water Breathing

6th level (20 slots): Chain Lightning, Create Undead, Mass Sugestion

7th level (20 slots): Reverse Gravity, Teleport

9th level (20 slots): Astral Projection, Invulnerability, Power Word Kill, Time Stop, True Polymorph, Wish   

Threat. Chicken will turn its eyes dead red.

Scratch. Melee Weapon Attack: +5 to hit, reach 5 ft., 1 target. Hit:  (1d4 + 4) Slashing damage. 

Swarm of the Divine. Ranged Weapon Attack: +50 to hit, range 3000 ft., 1 target. Hit:   (100d8 + 150) Chicken damage.

Swarm of the Divine. Ranged Weapon Attack: +50 to hit, range 3000 ft., 1 target. Hit:   (100d8 + 150) Chicken damage.