Archfey Chain Familiar - Teacup Owlbear

Keen Sight and Smell. The owlbear has advantage on Wisdom (Perception) checks that rely on sight or smell.

Magic Resistance. Your familiar has advantage on saving throws against spells and other magical effects.

Spellcasting. Choose one 1st level spell from your patron's expanded spell list, your familiar can cast that spell once per long rest. Your familiar uses Charisma as its spellcasting ability.

Spell save DC = 8 + your proficiency bonus + your familiar's Charisma modifier

Spell attack modifier = your proficiency bonus + your familiar's Charisma modifier

Shapechanger. Choose two CR 0 beasts. Your familiar can use its action to Polymorph into one of these beasts, or back into its true form. Its statistics are the same in each form, except for changes to speed.

Multiattack. The owlbear makes two attacks: one with its beak and one with its claws.

Beak. Melee Weapon Attack: +4 to hit, reach 5 ft., one creature. Hit: 8 (1d6 + 4) piercing damage.

Claws. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 11 (1d4 + 2) slashing damage.

Invisibility. Your familiar magically turns Invisible until it attacks, or until its Concentration ends (as if concentrating on a spell). Any Equipment your familiar is wearing or carries is Invisible with it.