you count as both humanoid and undead.

Your Strength score increases by 1, one ability scores of your choice increase by 1, and your intelligence and Dexterity are  reduced by 1.

When you become a deathless you stop aging entirely.

Deathless are the same size as they where when they where stil alive.

Your base walking speed is 35 feet.

Thanks to the powers which returned you, 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 the following flaws:

Forbiddance. You can't enter a residence without an invitation from one of the occupants. A sign on the outside of a building saying something like "open for business" will also allow you to enter a building.

Harmed by Running Water. You take acid damage equal to twice your level if it ends its turn in running water. This acid damage ignores resistance and immunity to acid damage that may be granted by your base race.

Stake to the Heart. If a piercing weapon made of wood is driven into your heart while you are incapacitated in a place of rest, you become incapacitated until the stake is removed.

You can speak, read, and write Deathless in adition to any languages which you spoke when you were still alive.