This Zapdos is pretty okay in game, except (for me at least) without accuracy boosters or lock-on, Zap Cannon needs to go. I am sure there are many great replacements for Zap Cannon, like Ancient power, as mentioned in the comments above. :P
GinnyEvilShadow, in a pokemon game, when something is post-game, you can only use/access it after you beat the Pokemon League/main plot of the game.