Death's Tattoo

On the death of a character they may receive Death's Tattoo, a magic tattoo given to them by some god or goddess which favors them. The Tattoo will possibly appear some time after death usually one hour after death but no later than twenty-four hours, if it doesn't appear after twenty-four hours it will never appear, leaving the character a corpse. It is best described as a black skull with tendrils coming from it's mouth to wrap around the preferred arm of the character until all of them meet in the mouth of a second skull placed at the base of the character's skull. 

The Tattoo behaves under the following rules:

• Revives a dead character once after which they will have the tattoo and all abilities connected
• Allows the character to absorb any number of non-magic items as long as all items absorbed fit within a cubic foot
• Grants the ability to summon a shadow tentacle and perform one action. The tentacle can reach in any direction 40 feet, can not lift with anything currently alive, is incapable of lifting anything weighing more than 15 pounds
• it is treated as a ranged cantrip attack but uses strength as it's modifier. It has a range of 50 feet and deals 2d6 necrotic damage. once a character reaches level 8 the tentacle strike deals 3d6
• a character is able to use a number of times equal to their constitution modifier with a minimum use of 1. the number of uses available is replenished after a short or long rest