Yeah, cloning doesn't count as a hack. My teams have always passed hack check anyway. I think most of what their hack checker looks for is totally illegal movesets, illegal abilities, and stats that are outside the possible range.
You wanted a Terrakion from the shiny trio giveaway, right?
As I can clone ( I use a method that sends the poke to a fake GTS and gives me back as many as I want - this: http://pokecheck.kraftpaper.org/) so I can give you one.
Sadly my WiFi sometimes fails (not always, but sometimes yeah) so It may turn out that the only method to give It to you would be the GTS. Are you ok with that?