Usually the point of changa is easier method of administration, as in, you can just smoke it like regular tobacco and get near full effect. There's no tricky vape technique or specialized smoking device needed.
That being said, it's not easy to smoke powder. Putting some in a regular tobacco or cannabis pipe would result in sucking a bunch of it through. If you've looked at any of the changa threads you'll see most people just have it chopped or ground, but never finely powdered.
Hope this helps