Unwavering Loyalty. This creature's loyalty to the Ytepka Secret Society is so strong it is immune to being charmed.

Elemental Mastery. This creature mastered the ways of the four elements -- fire, lightning, cold and poison are resisted by the Ytepka Cultist.

Spellcasting. The fanatic is a 6th-level spellcaster. Its spellcasting ability is Intelligence  (spell save DC 15, +7 to hit with spell attacks). The fanatic has the following wizard spells prepared:

Cantrips (at will): prestidigitation, fire bolt, message, chill touch

1st level (4 slots): shield, comprehend languages, jump, magic missile, mage armor, identify

2nd level (3 slots): hold person, flaming sphere, misty step, cloud of daggers

3rd level (3 slots): fireball, counterspell, hypnotic pattern

Multiattack. The cultist either casts a spell or makes two poisoned dagger attacks.

Poisoned Dagger. Melee or Ranged Weapon Attack:  +6 to hit, reach 5 ft. or range 20/60 ft., one creature. Hit: 5 (1d4 + 3) piercing damage + 3 (1d6) poison damage. Forces out a DC 11 CON save against the poisoned condition.

Ytepka Chant. Once per round, each Ytepka Cultist can perform a chant that grants him 2d6 temporary hit points.

Societal Spellguard. For as long as there are other Ytepka Cultists in combat, the Ytepka Cultist can use its reaction to reroll a failed spell saving throw. It must use the new roll.

Precise Spell. Once per round, whenever the Ytepka Cultist misses a spell attack, it can reroll the attack roll. It must then use the new roll.