I only barely got this out within the time frame promised, but here it is, the next and for awhile at least, probably last currency tweaking build, which places the Copy Ability cost somewhere between the original values from the 4/12 build and the reduced values of the 4/15 build.
The build also contains some bug fixes, minor UI tweaks, and as a cool bonus, some sprite updates by geminimax, including this awesome new Vikhor sprite. Thanks geminimax.
Next up: the bigger chunks of UI improvements I was saving for once I had currency in a good place.