As a proficient Spell Tattoo Artist, you can create single-use tattoos, called spellwrought tattoos, that store known spells of fifth level or lower.

Resources: You have learned to modify Calligrapher’s supplies by hardening special quills and have developed unique ink recipes for your tattoos. Scribing a spellwrought tattoo takes an amount of time and money related to the level of the spell the character wants to scribe, as shown in the Spellwrought Tattoo Costs table. In addition, you must provide any material components required for the casting of the spell. Moreover, you must have the spell prepared, or it must be among your known spells, in order to scribe a tattoo of that spell.

If the tattooed spell is a cantrip, the version on that the tattoo works as if the caster were 1st level.

SPELLWROUGHT TATTOO COSTS
Spell Level     Time                  Cost
  Cantrip         1 day                  20 gp
  1st                1 day                  35 gp
  2nd               3 days                350 gp
  3rd                1 workweek      700 gp
  4th                2 workweeks    2,500 gp
  5th                4 workweeks    5,000 gp

Placement: The tattoo must be inked onto a creature with a corporeal body. Regardless of size, a humanoid’s body has a specific number of segments available for tattooing. A tattoo can be arranged on any contiguous available body segments.

     BODY SEGMENT CHART
     Body Part    Segments Available
     Scalp               2
     Limb                4
     Back                8
     Chest              8

     MAGIC TATTOO COVERAGE
     Tattoo Rarity          Segments Required
     Common                    1
     Uncommon                2
     Rare                            4
     Very Rare                   8
     Legendary                 24

Complications: Crafting a spellwrought tattoo is a meticulous task. When tattooing a third level spell, there is a 10 percent chance of a complication. Fourth level spells have a 20 percent chance of complication and fifth level spells have a 40 percent chance of complication.

SPELLWROUGHT TATTOO COMPLICATIONS
d6    Tattoo Complication
 1      You bought up the last of the rare ink used for tattooing, angering a tattoo artist in the closest town.
 2      The priest of a temple of good (or a potential rival) accuses you of trafficking in dark magic.
 3      The creature bleeds excessively during the process, requiring it to rest for 1 day after completion of the tattoo.
 4      Due to a strange error in creating the tattoo, it is instead a random spell of the same level.
 5      The creature’s skin takes well to tattoos, reducing time by 1 day.
 6      A thief (or a potential rival) attempts to break into your workroom.