Techno-Changeling of the Imperium live at the outskirts of civilized worlds. Their merger with nanotechnology is generally frowned upon.
-1 Essence due to nanites for minor Nanites/-2 Essence for major nanites.
The character uses a chi activation to rearrange the nanotech in their body to accomplish a small alteration of their form in their limbs/appendages. This nanosystem as typically manifests has enough energy to activate using 1 CHi a number of times equal to their System Fortitude, requiring a full Short Rest of no use to recharge. Some Techno-Changelings have the ability to use an external power source, increasing the times they can be triggered and potentially adding additional capabilities. It requires a round of Concentration to change form, which lasts 1 hour.
System Fortitude = Proficiency Bonus + Con adjustment