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

Each month, A Winter Touched Tiefling must spend an hour bathed in moonlight to commune with the Winter Queen. This communion restores the magic that keeps the Winter Touched Tiefling on the Mortal Plane.

Failure to do so makes the magic wane, causing an irrevocable level of exhaustion till the communion happens.

Your Intelligence 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 might not have an innate tendency toward evil, but many of them end up there. Evil or not, an independent nature inclines many tieflings toward a chaotic alignment.

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

Your base walking speed is 30 feet.

Thanks to your infernal heritage, 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 resistance to cold damage.

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