Magic Resistance. Zhen Sheng has advantage on saving throws against spells and other magical effects.

Spellcasting. Zhen Sheng is an 12th-level spellcaster. Its spellcasting ability is Intelligence (spell save DC 16, +8 to hit with spell attacks). He can cast detect magic and true seeing at will and has the following wizard spells prepared:

Cantrips (at will): fire bolt, light, mage hand, prestidigitation, shocking grasp

1st level (4 slots): find familiar, identify, mage armor*, magic missile

2nd level (3 slots): arcanist's magic aura, mirror image, misty step

3rd level (3 slots): counterspell, clairvoyance, lightning bolt

4th level (3 slots): banishment, arcane eye*, locate creature

5th level (2 slots): cone of cold, scrying

6th level (1 slot): chain lightning

*Zhen Sheng casts these spells on itself before combat.

Dagger. Melee or Ranged Weapon Attack: +6 to hit, reach 5 ft. or range 20/60 ft., one target. Hit: 4 (1d4 + 2) piercing damage.