Since you're doing Zoroark, a few suggestions:
1. Make it female. Female is functionally better than male in most cases.
2. Give it a good HP... preferably, again, one that hasn't been done. I've got a good HP Ice one, and a HP Electric Zorua, so things like HP Grass, HP water, HP Fighting, etc. might be pretty good.
I don't know where you are on team-constructing, but if you have a pokemon that's especially vulnerable to a counter that, getting a HP against that counter would be great.
Good luck!