Failed Cultist

Medium ooze, lawful evil

Armor Class 8

Hit Points 150 (15d8 + 75)

Speed 20ft

STR

10 0

DEX

6 -2

CON

20 +5

INT

18 +4

WIS

16 +3

CHA

8 -1

Saving Throws Dex +1, Int +7, Con +8

Skills Perception +6

Damage Immunities Lightning, Slashing, Psychic

Condition Immunities Blinded (Actual sight can be removed), Deafened, Exhaustion, Prone

Senses Blindsight 60 Ft., Passive Perception 16

Languages Any language it knew before becoming this abomination.

Challenge 5

Spellcasting. The failed cultist is a 5th-level spellcaster. Its spellcasting ability is Intelligence (spell save DC 15, +7 to hit with spell attacks). The failed cultist has the following wizard spells prepared:
Cantrips (at will): fire bolt, light, mage hand, prestidigitation
1st level (3 slots): detect magic, magic missile, shield
2nd level (3 slots): blindness/deafness, scorching ray
3rd level (2 slots): counterspell

Amorphous. The Failed Cultist can move through a space as narrow as 5 inches wide without squeezing.