If you choose a class with spellcasting, you are not able to cast any spells with any but the simplest somatic components. Work with your DM to determine which spells these are.

Traits inherited from the raven beast

Your Dexterity score increases by 2, and your Intelligence score increases by 3. you get a -2 to constituion

because it is a small animal it gets -2 hp permanently each level this is to reflect its fail nature

has access to the cantrip vicious mockery

Ravens are common familiar for witches and wizards, because of this you are more magically gifted than most other awakened beast. At first level you know two cantrips of your choice from the warlock or wizards spell list. At 3rd level you learn a 1st level spell of your choice from the warlock or wizards spell list, which you can cast once per long rest. Intelligence is your spells casting ability for these spells.

You have proficiency in the perception and deception skills.

Corvus are adept at solving puzzles,  they can pick locks without tools using their beak