Power of the Cloud Giant Smiling One

You’ve manifested some of the power of a Smiling One, granting you the following benefits:

Ability Score Improvement. Increase your Strength or Constitution by 1, to a maximum of 20.

Smiling One's Expertise. You gain proficiency in Deception, Insight, Perception, or Sleight of Hand. If you already have proficiency in Deception or Sleight of Hand, you gain expertise in it instead, if you choose it.

Magic of the Smiling One. You learn one of the following cantrips: light, minor illusion, prestidigitation, or vicious mockery. The spell’s spellcasting ability is Charisma when you cast it with this feat.

In addition, choose one spell from each of the following lists:
    1st level spell: cure wounds, detect magic, feather fall, silent image, Tasha's hideous laughter
    2nd level spell: invisibility, misty step, suggestion
    3rd level spell: fly, gaseous form, major image, tongues
You learn the chosen spells and can cast them without expending a spell slot. Once you cast one of these spells in this way, you can’t cast that spell in this way again until you finish a long rest. You can also cast these spells using spell slots you have of the appropriate level. The spells’ spellcasting ability is Charisma when you cast it with this feat.

Shapechanger. As an action, you can polymorph into a cloud giant, a beast or humanoid you have seen, or back into your normal form. While transformed the following rules apply:

• Your game statistics are the same, except for your size and your movement speeds and attacks are replaced by those of the new form.
• Your ability to cast spells, speak or take any action that requires hands is limited to the capabilities of your new form.
• If you polymorph into a cloud giant or humanoid you can have any equipment you are wearing change with you. Otherwise, any equipment you are wearing or carrying merges with the new form.

You can use this feature to transform into a cloud giant a number of times equal to your proficiency bonus, and you regain all expended uses when you finish a long rest.