You are able to bind the power of ki into the flesh by channeling it into tattoos.
Benefit(s): You can inscribe mystic tattoos into a creature’s skin that resonate with any one ki feat you possess. This requires 8 hours and 500 gp for special inks, incense, dyes, and needles, followed by a DC 20 Craft (tattooing) check. The creator must also spend 2 points from his ki pool to link the feat to the tattoo.
If the check fails, the tattoo fails to capture the ki power you imbue and fades into uselessness.
Once successfully created, the ki tattoo provides the tattooed creature with any constant effects of that feat as if he always had 1 point in his ki pool. In addition, if the tattooed creature posesses a ki pool, once per day he can reduce the cost to activate any effect of the linked feat that requires expenditure of ki by 1 point (minimum 0). A ki tattoo does not provide a ki pool to a creature without one.
Ki tattoos cannot be accessed while the creature bearing them is using a polymorph effect, though the ki tattoos are not destroyed by such effects and can be used again when the creature resumes its true form. ki tattoos are unaffected by erase.
A creature can have a number of ki tattoos equal to 1/4 its level (rounding down, minimum 0); however, the DC to inscribe the tattoo increases by 5 for each tattoo after the first. Each tattoo lasts a number of days equal to your Wisdom modifier.
The Way of Ki © 2012, Legendary Games; Author Matt Goodall.