Your Dexterity score increases by 2 and your Charisma score increases by 1.

It is unknown if a Cheshire Cat can ever die of age, perhaps they just turn invisible for longer.

The Cheshire Cats have always done what they want, they tend towards chaotic, however not always good. They only ever do things to amuse themselves, however they are usually loyal to those they call friends, so long as those friends are amusing.

Cheshire Cats are small(3 feet tall), probably. Then again though, "You may have noticed that I'm not all there myself".

Your base walking speed is 30 feet and you have a hovering speed of 30 feet but you cannot go higher than 25 feet off a surface and if you go over a ledge with a drop of 25 feet or more you fall till 25 feet above the ground and stop there without taking any damage.

Cheshire Cats have darkvision of 60 ft.

Cheshire Cats have the uncanny ability to just appear. Cheshire Cats can use an action to become invisible as if they had cast greater invisibility and can dismiss it as an action, however they can cause certain parts of themselves to reappear, for example their eyes and mouth are the only things visible.. They can do this at will indefinitely however being charmed, frightened, stunned, poisoned, set alight by fire, being knocked unconscious or killed will cause you to become visible again.

Your unarmed strike does 1d4+Dexterity modifier slashing damage and you gain a new attack called Bite with range of 5 feet that does 1d6+Strength modifier piercing damage. The damage of both these attacks increases by 1 dice size per size increase. (For example 1d4 slash becomes 1d6 at medium.)

You can speak, read, and write Common and one other language of your choice.

Using an action you can grow to medium(6 feet tall), Large(12 feet tall), Huge(24 feet tall) or revert back to small(3 feet tall).

Large and huge sizes gain +10 and +20 movement respectively.