Magic Resistance. The pixie has advantage on saving throws against spells and other magical effects.

Flyby. The familiar doesn’t provoke opportunity attacks when it flies out of an enemy’s reach.

Innate Spellcasting. The pixie’s innate spellcasting ability is Charisma (spell save DC 19, +11 for attacks). It can innately cast the following spells, requiring only its pixie dust as a component:

At will: druidcraft

1/day each: confusion, dancing lights, detect evil and good, detect thoughts, dispel magic, entangle, disguise self, phantasmal force, polymorph, sleep

Superior Invisibility. The pixie magically turns invisible until its concentration ends (as if concentrating on a spell). Any equipment the pixie wears or carries is invisible with it.

Multiattack. The familiar makes 2 unarmed attacks (rounded down).

Unarmed attack (magical). Melee Weapon Attack: +11 to hit, reach 5 ft., one target. Hit: 1d8 + 9 bludgeoning