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

Tieflings mature at the same rate as humans but live a few years longer.

Tieflings are about the same size and build as humans. Your size is Medium.

Your base walking speed is 30 feet.

Accustomed to twilit forests and the night sky, you have superior vision in dark and 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.

You have proficiency in the Perception skill.

You have advantage on saving throws against being charmed, and magic can’t put you to sleep.

You can speak, read, and write Common and Infernal.

As a bonus action, you can magically teleport up to 30 feet to an unoccupied space you can see. Once you use this trait, you can’t do so again until you finish a short or long rest.

When you reach 3rd level, your Fey Step gains an additional effect based on your season; if the effect requires a saving throw, the DC equals 8 + your proficiency bonus + your Charisma modifier:

Autumn. Immediately after you use your Fey Step, up to two creatures of your choice that you can see within 10 feet of you must succeed on a Wisdom saving throw or be charmed by you for 1 minute, or until you or your companions deal any damage to it.

Winter. When you use your Fey Step, one creature of your choice that you can see within 5 feet of you before you teleport must succeed on a Wisdom saving throw or be frightened of you until the end of your next turn.

Spring. When you use your Fey Step, you can touch one willing creature within 5 feet of you. That creature then teleports instead of you, appearing in an unoccupied space of your choice that you can see within 30 feet of you.

Summer. Immediately after you use your Fey Step, each creature of your choice that you can see within 5 feet of you takes fire damage equal to your Charisma modifier (minimum of 1 damage).