Quote Originally Posted by Perfect Chaos View Post
EraGam, I don't believe you can use your Treecko in this battle as it's currently already in your first battle with Cynder. I think there's a ruling for this somewhere but can't seem to find it. Maybe the mods OSLO can inform us.
Pokemon can be in multiple battles at once. The only stipulation is that a Pokemon can't be in a battle if you're trying to evolve it.