In X and Y Wifi you pick your pokemon of your choice to battle.But there are some pokemon that will be the best for your competitive battles! Sceptile is one good choice. It has very good stats and its speed is woo! Next it Greninja. Well not as fast as Sceptile this pokemon has one of the best abilities yet! With a choice scarf this pokemon may be unstoppable! Lastly the most best pokemon to put on your team is... Infernape! It has better speed than blaziken and this pokemon will rock your day. With its good speed it can dodge even the fastest moves like Ariel-Ace