Zastra

Medium Humanoid (Gith), Lawful Neutral

STR
16 (+3)
DEX
14 (+2)
CON
15 (+2)
INT
14 (+2)
WIS
14 (+2)
CHA
15 (+2)
Innate Spellcasting (Psionics).

Zastra's innate spellcasting ability is Intelligence (spell save DC 13, +5 to hit with spell attacks). It can innately cast the following spells, requiring no components:

At will: mage hand (the hand is invisible)

3/day each: jump, misty step, nondetection (self only), tongues

1/day each: plane shift, telekinesis

Actions

Multiattack.

Zastra makes two silver greatsword attacks.

Silver Greatsword.

Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 13 (2d6 + 6) slashing damage plus 10 (3d6) psychic damage. This is a magic weapon attack. On a critical hit against a target in an astral body (as with the astral projection spell), Zastra can cut the silvery cord that tethers the target to its material body, instead of dealing damage.

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Zastra

Source: Vecna: Eve of Ruin, p. 60 - Licenses and attribution