Fairies age very slowly, if at all. They are created fully formed, physically and mentally, taking on the appearance of a beautiful human of the age of 10 to 30 with pointed ears.

Fairies are as wild like the elements of nature they were created from, but also know that nature has rules that it follows. As such the fae are often neutral on the lawful-chaos spectrum, tho some do go to the ends of it sometimes. Protecting nature and its freedom is of utmost importance to fairies, much like other fey, and they are more often good than not.

Your size is tiny as a pixie and small as a giant. In pixie form fairy sizes ranging from 1 foot to 2 feet in pixie form. In giant form they are 12 times this size, going from 1 foot to 2 feet tall to 3 feet to 4 feet tall. 

Your base walking speed is 25 feet.

Pixie form is the most well-known form. Pixies have the ability to fly and are able to dash through the air the same as when walking in giant form. This ability makes fairies extremely mobile, but it has its cons as well. You get 3 uses to transform into your tiny pixie self that each last a minute. This ability recovers on a long rest. In your tiny form, you are a foot tall. You have disadvantage on strength checks while in your small form. You can not transform into your large self while in an occupied space. You can not pick up objects larger than yourself. When in pixie form, fairies are unable to use any attacks, or spells due to their small size. Flying vertically counts as difficult terrain. 

In giant form, fairies are able to use their normal attacks and spells as any other humanoid can, but lack the capability to fly.

You have advantage against being charmed, and can't be put to sleep by magic.

You can speak, read, and write common and sylvan. Sylvan is an old language, being the root of elvish. The language is most commonly known for being used in spell incantations, and it is said that one can become entranced by its beauty and fluidity.

Due to your strong connection with flora and fauna, you know the Druidcraft Cantrip.

Living mostly outdoors without exposure to traditional lighting, you have superior vision in dark or dim conditions. You can see in dim light within 60 feet of you as if it were bright light, and in darkness as if it were dim light. You can't discern color in darkness, only shades of gray.

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