Yuan-ti Malison (Type 3)

Medium Monstrosity, Neutral Evil

STR
16 (+3)
DEX
14 (+2)
CON
13 (+1)
INT
14 (+2)
WIS
16 (+3)
CHA
12 (+1)
Magic Resistance.

The yuan-ti has Advantage on saving throws against spells and other magical effects.

Spellcasting (Yuan-ti Form Only).

The yuan-ti casts one of the following spells, requiring no Material components and using Wisdom as the spellcasting ability (spell save DC 13):

At will: Animal Friendship (snakes only)

2/day: Suggestion

Actions

Multiattack.

The yuan-ti makes two Poison Burst attacks, and it can use Spellcasting to cast Suggestion if available.

Poison Burst (Yuan-ti Form Only).

Melee or Ranged Attack Roll: +5, reach 5 ft. or range 120 ft. Hit: 12 (2d8 + 3) Poison damage.

Constrict.

Strength Saving Throw: DC 13, one Medium or smaller creature within 5 feet. Failure: 21 (4d8 + 3) Bludgeoning damage. The target has the Grappled condition (escape DC 13), and it has the Restrained condition until the grapple ends.

Bonus Actions

Shape-Shift.

The yuan-ti shape-shifts into a Medium snake or returns to its true form. If it dies, it stays in its current form. The yuan-ti's game statistics are the same in each form, except where noted. Any equipment it is wearing or carrying isn't transformed.

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Yuan-ti Malison (Type 3)

Source: Monster Manual (2025), p. 344 - Licenses and attribution