Lucario.
His place, like the above, was earned by 'extraordinary conditions'. In this case. He solo'd Pokemon X's Champs team, and NOT by choice ether. What happened is, kinda like with Giratina above, I 'forgot' something about a Pokemon I was fighting. In this case, Mega Gyarados's weakness. The result being Lucario was last mon standing and I still had the champ to deal with. I COULD have let her finish me off, come back with a full party, and restocked healing items. I didn't though, I thought about it but funny as it sounds there was this little voice saying 'You got this, You've risen to steeper challenges in other games, this, you got.' So I pressed on with One Pokemon, no revives and and only 3 Full Heals to get me through 6 pokemon. I say 'only 3', because the fight against the champ didn't really start until she tossed out Mega Gardevoir, the champs other 5 where OHKs due to me using Mega-Evolution right off the bat (I'm crazy not stupid). The fight between Mega Lucario and Mega Gardevoir was a back and forth slug fest, untill the AI did a dumb thing I was able to capitalize on and secure the win.