Genasi mature at about the same rate as humans and reach adulthood in their late teens. They live somewhat longer than humans do, up to 120 years.

Changelings tend toward pragmatic neutrality, and few changelings embrace evil.

Your size is Medium. To set your height and weight randomly, start with rolling a size modifier:

Size modifier = 2d4

Height = 5 feet + 1 inch + your size modifier in inches

Weight in pounds = 115 + (2d4 × your size modifier)

Your base walking speed is 30 feet.

You can speak, read, and write Common and Primordial

Choose one ability score to increase.

As an action, you can change your elemental appearance. You can switch between the four elements; Air, Water, Earth and Fire. Each form gives you special bonuses while in that form.

You can only cast one spell per day from any form.

While casting spells in a form, you must stay in that form for the duration of the spell. You may change forms but the current spell cast is immediately dropped.

You stay in the new form until you use an action to change your form again.

Unending Breath

You can hold your breath indefinitely while you’re not incapacitated.

Super Jump
You can jump through the air equal to your walking speed and you can fall a distance equal to your walking speed without taking damage.

Featherfall 
Once per long rest you can use your reaction to cast slowfall at base level. Wisdom is your spell casting ability for this spell.

Swimmer
You gain a swim speed of 30
Cold Resistance
You gain resistance to Cold

Amphibious
You can breathe air and water.

Water Walking
You may cast water walk once per long rest. Wisdom is your spell casting ability.

Earth Walk

You can move across difficult terrain made of earth or stone without expending extra movement.

StoneSkin
You increase your Armor Class by 1. Beginning at 7th level you may cast Stoneskin on yourself once per long rest. Wisdom is your spell casting ability.

You gain resistance to fire damage

Darkvison -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. Your ties to the Elemental Plane of Fire make your darkvision unusual: everything you see in darkness is in a shade of red.

Walking Torch - In this form you can choose to emit a bright light for 15 feet and an additional 15 feet of dim light.

Hellish Rebuke - Once per long rest you can cast Hellish Rebuke at base level. At 7th level it changes to a 2nd level spell, 14th level it changes to a 3rd level spell and at 20th level it changes to a 4th level spell. Wisdom is the spell casting ability.