You don't know what we've been through...
Sorry, it just seemed like an odd question, since the only place I ever mention regional dex is in relation to trading and hacking in mons. If you are able to catch a pokemon, then you may. So any pokemon available in the hack is fair game.
Today is the last day of the 1000 post event! At midnight American central time all hacking outside the standard rules will not be allowed. Anyone with a hacked pokemon already in their game is free to keep it in that game, but no new ones may be added. Here is my last one, as a means to use it to make the most empty monotype more playable.
Games: fire red for now, rest later
What are you doing here? Trapinch...